DES MOINES — It was the Fourth of July, Independence Day, and Kamala Harris was explaining to her sister, Maya, that campaigns are like prisons.

She’d been recounting how in the days before the Democratic debate in Miami life had actually slowed down to a manageable pace. Kamala, Maya and the rest of the team had spent three days prepping for that contest in a beach-facing hotel suite, where they closed the curtains to blot out the fun. But for all the hours of studying policy and practicing the zingers that would supercharge her candidacy, the trip allowed for a break in an otherwise all-encompassing schedule.

About the series

An occasional series examining 2020 candidates through the prism of their most important relationships.

“I actually got sleep,” Kamala said, sitting in a Hilton conference room, beside her sister, and smiling as she recalled walks on the beach with her husband and that one morning SoulCycle class she was able to take.

“That kind of stuff,” Kamala said between sips of iced tea, “which was about bringing a little normal to the days, that was a treat for me.”

“I mean, in some ways it was a treat,” Maya said. “But not really.”

“It’s a treat that a prisoner gets when they ask for, ‘A morsel of food please,’ ” Kamala said shoving her hands forward as if clutching a metal plate, her voice now trembling like an old British man locked in a Dickensian jail cell. “‘And water! I just want wahtahhh....'Your standards really go out the f---ing window."

Kamala burst into laughter.

Maya Harris prepares to speak in Las Vegas in March. She is no stranger to campaigns after serving as a senior adviser to Hillary Clinton in 2016. (Melina Mara/The Washington Post)

The Harris sisters don’t look all that much alike. Kamala resembles their father: taller and angular; where Maya has the softer features of their late mother who clocked in at 5-foot-1. But the sisters share a contagious, body-shaking laugh so similar that strangers often guess they’re related.

Only now, Maya kept a straight face. Getting exercise and sleep aren’t a treat, she said, but a necessity. Maya has always got Kamala’s best interest at heart, whether it’s ignoring the former prosecutor’s joke comparing a campaign to incarceration, making sure she’s fully up to speed on policy, or getting enough rest — and not just because she’s Kamala’s little sister, but because she’s Kamala’s campaign chairwoman.

It’s a job she’s uniquely qualified for: She was a senior adviser for Hillary Clinton in 2016, knows her sister better than anyone else (at campaign events she takes mental notes and drapes her arm around Kamala afterward to whisper advice), and is something of a yin to Kamala’s yang.

Where Kamala, California’s former attorney general, came up through politics as a law enforcement official — a job that has become controversial among liberal Democrats — Maya has been at the forefront of criminal justice restructuring: as a leader at the American Civil Liberties Union, as a vice president at the Ford Foundation, helping edit her friend Michelle Alexander’s seminal book about mass incarceration, “The New Jim Crow.”

Kamala D. Harris, right, is inaugurated as attorney general as her sister, Maya Harris, center, and Chief Justice of California Tani Cantil-Sakauye, left, applaud at the California Museum in Sacramento on Jan. 3, 2011. (Anne Chadwick Williams/AP)

Maya is, in other words, exactly the type of person who might criticize Kamala’s campaign from the sidelines. It’s your classic good-cop/not-a-cop routine.

“If people knew who Kamala was, and really what she believes and really where her heart is,” Maya said,“I think it would be hard not to reach the conclusion that this is the person who would be the most passionate advocate for the things we’ve been fighting for for a long time.”

Over the course of Kamala’s political career, she’s been many things: tough on crime, progressive, pragmatic, hard to fit into an ideological box. Sometimes during this campaign it can seem as if she’s trying to please all the people all the time, and sometimes it’s like she just can’t please anyone.

Questions of who she is, what sits at her core, and why exactly she wants to be president have become central to her campaign and chances of winning. Few, if anyone, have had these concerns about Maya, and Maya doesn’t have these concerns about Kamala. Her trick then, in her own words, is this:

“How do you bridge the gap between what you know about someone, and what people think about someone?”

At 25 years old, Shyamala Harris had a college degree, a PhD and her daughter Kamala. (Courtesy of Kamala Harris) Donald Harris on his way to a doctorate in economics at Berkeley in April 1965 while holding Kamala. (Courtesy of Kamala Harris)

LEFT: At 25 years old, Shyamala Harris had a college degree, a PhD and her daughter Kamala. (Courtesy of Kamala Harris) RIGHT: Donald Harris on his way to a doctorate in economics at Berkeley in April 1965 while holding Kamala. (Courtesy of Kamala Harris)

On a recent swing through South Carolina, Kamala spoke to an audience of overheated, mostly black voters who had packed into a gymnasium in Columbia to feel her out.

“I was raised that you don’t talk about yourself,” Kamala said. “But I’ve also realized that in order to form the relationships, it’s important to let people know about my people.”

It’s the kind of thing a faux-humble person might say when running for president: Now, I hate to make this whole thing about me. But even the book she wrote to launch her campaign revealed little about her inner terrain.

Her inability to get personal had been so much of a problem in the early months of her campaign, that at one point, with her poll numbers treading water, she felt the need to apologize.

“I’ve been trying to get her to tell more stories,” Maya whispered offstage now, as Kamala did just that.

Their father, Donald, was a Stanford economics professor from Jamaica, and their mother, Shyamala was a scientist from India, but before that they were a couple of civil rights activists attending the University of California at Berkeley.

“We joke that we grew up surrounded by a bunch of adults who spent all their time marching and shouting about a thing called justice,” Kamala said, getting laughs from the crowd with a story about going missing from her stroller at a protest.

The Harris girls pose for a Christmas photo in 1968. "When I think about it, all of the joyous moments in our lives, all of the challenging moments, all of the moments of transition, we have always been together,” Kamala said. (Courtesy of Kamala Harris)

Shyamala and Donald split when the sisters were young, after which it was mostly just “Shyamala and the girls,” and sometimes, when Shyamala had to travel for work, it was just the girls. (Shyamala died in 2009, and Donald has what friends of the family call a “strained” relationship with his daughters.)

When feasible, Kamala and Maya would tag along to their mother’s conferences, getting the run of the place in hotels around the world. Other times, Shyamala would travel without them, leaving the girls under the care of neighbors they considered family.

But no matter who was looking after them, Kamala was looking after her sister, and that often meant using her fists in the schoolyard.

“Kamala was very feisty, and always fighting,” her friend since childhood, Peter Monroe, said in a phone interview. “She was always either going to be putting people in prison or going to prison.”

Kamala remembers the skirmishes: “It was the ’70s! People fought on the schoolyard. This was before timeouts!” But she also remembers the fun: playing Miss Mary Mack on the yellow bus with the “Red Rooster” decal that took her 30 minutes out to Thousand Oaks Elementary, leaving her diverse, middle-class neighborhood to help integrate a school that a decade earlier was only 2.5 percent black.

It’s obvious now, that Maya was right to push Kamala to share more of her personal history. Less than a month after speaking in South Carolina, Kamala’s campaign has surged in the polls, all because she took the debate stage in Miami, and had gone after former vice president Joe Biden by telling her story. Months earlier, Kamala and Maya had been “surprised” to learn about Biden’s past opposition to busing initiatives to integrate schools in the 1970s. To them, it felt personal. Onstage, Kamala told the story of one child who benefited. “That little girl was me,” she said.

Maya watches Kamala field questions at the Iowa Statehouse in February. The sisters have come a long way since having “the ACLU lawyer on one end of the table and the district attorney at the other.” (Stephen Maturen/Getty Images)

Some stories, however, are too complicated for a stump speech.

When the girls were 12 and 9, Shyamala accepted a job at McGill University, moved the family out to Montreal, and enrolled Kamala and Maya in a neighborhood school where everyone spoke French except for them. They remember the Mayflower truck coming to bring all their belongings across the continent, they remember arriving at their apartment and hiding from the cold in the closet, and they remember how their relationship further solidified in a place where no one else spoke their language.

“We leaned on each other,” Kamala said. “We forged a bond that is unbreakable. When I think about it, all of the joyous moments in our lives, all of the challenging moments, all of the moments of transition, we have always been together.”

Almost always, anyway.

Kamala graduated from high school and went to Howard University in Washington. She immersed herself in the campus political scene, running for student government, protesting apartheid outside of the South African Embassy with fellow students. Big things were happening in the world, and Kamala wanted to be a part of it.

With Kamala at Howard, Maya moved back to the Bay Area. Her mother technically moved back, too, but still had work in Montreal, which meant at times Maya lived alone among their community of honorary aunts, uncles and cousins.

“If the alarm went off at the house, she’d call me,” said Monroe, who lived nearby. “Her mother instructed me to keep the boys from chasing after Maya.”

Kamala, pictured with her classmate Gwen Whitfield, was immersed in the campus political scene during her freshman year at Howard University in 1982. (Courtesy of Kamala Harris)

Maya’s transition was easy enough. She was pretty (best-looking, according to her graduating yearbook), getting stellar grades and popular. And so no one seemed to notice anything was up as she made her way through senior year wearing bigger and chunkier sweatshirts (it was, after all, the ’80s).

“Nobody knew she was pregnant until she was about eight or nine months,” recalled Judy Robinson, a close friend whose mother used to take care of the Harris sisters when Shyamala was away. Maya graduated from high school with honors, 17 years old, in her second trimester, and keeping a secret that even her closest friends didn’t know about.

“I remember Shyamala saying she cried for about four days,” Robinson said. “She cried for the fact that she was not there, that Maya went through this on her own without her.”

Maya does not talk about this part of her life. Not the pregnancy. Not who the father was (other than to say he was never really in the picture). Not who she kept the secret from or for how long.

She will talk about what came next: the birth of her daughter, Meena; her mother helping babysit while she finished college on time; the handsome law school friend and future husband, Tony West, who would help look after Meena at Stanford; the fact that her daughter and sister always had a “special relationship.”

“For me,” she said when asked to talk about what it was like to be pregnant at 17, “it’s always about pushing forward, never really looking back.”

In that way, she’s a lot like Kamala.

When asked about how Kamala found out and what her reaction was, both sisters declined to comment.

Kamala, right, meets two second-graders, with Maya, center, during a town hall-style event in Las Vegas in March. (Melina Mara/The Washington Post)

“Given all my lefty friends, it still amazes me that this ACLU lawyer ended up with a sister — and a husband — who both became prosecutors,” Maya said, speaking at her sister’s inauguration as San Francisco’s district attorney in 2004.

Maya had worked on that campaign, and been at her sister’s side on election night. In her speech, Maya joked about the possibility of awkward Thanksgiving dinners with “the ACLU lawyer on one end of the table and the district attorney at the other.”

There was some truth to the joke.

“Kamala would make her argument very persuasively and forcefully and turn to me and say, ‘Brother-in-law, you were a prosecutor, you agree with what I say,’ ” West said. “And no less forcefully, Maya would say, ‘Honey, you know I’m right, right?’ ”

In Maya’s line of work, prosecutors were often seen as the opposition. They were gatekeepers of an unjust system that locked up people of color in disproportionate numbers, lawyers who often cared more about their conviction rate than actual justice.

But, just as Maya had encouraged the ACLU to adopt more political strategies when she’d arrived in 2003 — bringing in pollsters and arguing that making progress on issues such as gay rights, voting enfranchisement for felons and juvenile justice restructuring required a campaign mentality — she argued that it was better to have people with her values inside the system.

San Francisco District Attorney Kamala Harris, center, signs election papers on Nov. 12, 2008, at City Hall. (Ben Margot/AP)

In many ways during her time as district attorney and later as attorney general, Kamala proved Maya’s point. She declined to seek the death penalty against a gang member who had killed a police officer, she worked on reentry programs for ex-offenders and she fought to loosen a draconian “three-strikes” law.

But before Kamala had even announced her candidacy, she was hip-checked from the left, in the form of a damning op-ed in the New York Times by Lara Bazelon, a law professor at the University of San Francisco, with the headline: “Kamala Harris Was Not a ‘Progressive Prosecutor.’ ”

For all the ways Kamala worked to shake up the system, she did plenty to uphold the status quo. Bazelon said in an interview that Kamala was “misrepresenting her record” by “latching on to a trendy label” when she had actually supported high cash bail costs that made it difficult for poor people to stay out of jail before trial, opposed a death row inmate’s request for advanced DNA testing to prove his innocence (she later told the New York Times she regretted that decision), laughed at a political opponent’s support for the legalization of marijuana, promised voters during her attorney general campaign that she would enforce capital punishment, and followed through, appealing a judge’s ruling that deemed the death penalty unconstitutional.

The challenge, Kamala said, is that people don’t always know the “spirit with which” many of her actions were taken.

“People don’t know me,” Kamala said.

But even some of the people who do, see her actions within a political context, as a way to move up within a system.

“It’s a ladder and I think she had this perspective of what’s my next step up the ladder,” said Aubrey Labrie, a longtime family friend. “I think that’s what’s ultimately driving her.”

Kamala after her inauguration. (Courtesy of Kamala Harris)

For the sisters to have an inside and outside game, Kamala needed a seat at the table. And even though Kamala wasn’t exactly a hard-liner, she was running for office in a different context back then.

In an ad she ran during her attorney general run, one that has mostly disappeared from the Internet, Kamala brags that she “started prosecuting parents who let their children skip school.”

Now, the calculus is different. Democrats are coming around to positions on criminal justice restructuring that Maya has held for decades. Today, Maya can help the campaign by giving voice to the policies she knows so well, and act as a conduit to the activist base of the party that might otherwise be hard for Kamala to reach. But what about then? What did Maya think about, say, Kamala’s truancy initiatives at the time?

“If I had to speak for Maya,” Kamala said, answering the question while Maya sat beside her. “It was well known, among people who knew me, that I never had any intention of criminalizing parents.”

Maya nodded along.

“In talking with you about issues, I never questioned your motives,” Maya said, turning to Kamala to speak broadly about her tenure. “I know what your values are. We may have to agree to disagree about the way to go about it.”

Sen. Kamala Harris, second from left and accompanied by her family, participates in a reenacted swearing-in with Vice President Joe Biden at the Capitol in January 2017. (Aaron P. Bernstein/Getty Images)

Finding people to trust in politics — a field full of mercenaries with their own interests at heart — can be a tough thing to do. It’s no wonder so many people turn to family members: John F. Kennedy had Bobby, Joe Biden’s sister once ran his campaigns, and Ivanka Trump remains one of the president’s most visible advisers.

But Kamala’s campaign is even more of a family affair than others. Some of Kamala’s former staffers say this is because she can have trust issues, that unless you’re in the inner circle, connecting with the boss is next to impossible. Kamala has certainly been under more of a microscope than your average politician: There just aren’t that many women or people of color who become district attorney, let alone attorney general or senator.

“In campaigns there will be those people who are part of your safe group,” Kamala said, wrapping up her interview in Des Moines. “The group of people you could call at midnight, could laugh at the thing you’re not supposed to laugh about, cry, scream, curse and not be judged.”

And Maya does not judge her sister. In Maya’s mind, there have always been “prosecutors,” and then her “sister the prosecutor”: The first being a group she viewed skeptically, the latter being the one she trusted. She thinks it made her a better advocate to know a little bit about the other side’s thinking, and believes she can help Kamala become a better politician by opening doors to the more progressive wings of the party. She can be, in the words of Zerlina Maxwell, who worked with Maya on the Clinton campaign, a “co-sign” on her sister’s candidacy.

“To have Maya in that small circle where I can have many conversations with very few words and with someone who completely understands my perspective because she’s lived it,” Kamala said. “It can be very validating.”

Kamala laughs with Maya in Columbia, S.C., in June. The 2020 hopeful says Maya is "invaluable" to the campaign. (Leah Millis/Reuters)

Before a town hall in Greenville, S.C., Kamala and her sister met with a small clutch of local officials, activists and supporters for some meeting and greeting in a backroom adorned with American flags. Many of the people had never met Kamala before, but had talked to Maya more than once on the phone.

“I say, ‘I would love actual feedback,’ and they’re candid,” Maya said, after posing for a selfie. “It can be easier to tell me than to tell her. And I can tell Kamala. Like it or not, I’ve been doing that forever.”

Maya quit her job as an MSNBC analyst to volunteer for her sister. (“She’s invaluable,” Kamala said. “There’s no amount of money I can pay her, so I pay her no amount of money.”) Maya’s husband, West, now the general counsel for Uber, has helped Kamala prep for a possible contest with Trump. (In one mock debate, West played the role of the president, and even came up with a Trumpian nickname for his sister-in-law that he won’t repeat publicly.) And Kamala’s husband, Doug Emhoff, is a regular presence on the trail, serving as her biggest fan (“I see a president up there,” he said, beaming after a speech in California), and enforcer from the sidelines (“F--- you, do better, don’t be so lame,” he grumbled about Biden, in the midst of his wife’s feud about busing with the former VP).

Kamala met Emhoff, a lawyer with two children from a previous marriage, on a blind date in 2013 and married him a year later at the Santa Barbara courthouse. Emhoff wore a flower garland around his neck to honor Kamala’s Indian heritage; at the end, they smashed a glass per Emhoff’s Jewish tradition. It was a ritual of compromise in pursuit of unity; an exchange of promises that would be tested sometime in the weeks and months and years to come. All eyes were on Kamala, but Maya was there, too, making sure everything happened the way it was supposed to.

She officiated the ceremony. She even helped write the vows.

ben.terris@washpost.com

Photo editing by Mark Gail. Copy editing by Annabeth Carlson. Design by Beth Broadwater