Democratic Sen. Amy Klobuchar of Minnesota announced at a rally in her home state on Sunday that she is running for president.

"Let us cross the river of our divides and walk across our sturdy bridge to higher ground," Klobuchar said at an outdoor event in Minneapolis where a large crowd stood in snowy, freezing conditions.

A sense of community "is fracturing across our nation right now, worn down by the petty and vicious nature of our politics," she added. "We are all tired of the shutdowns and the putdowns, the gridlock and the grandstanding."

The Minnesota Democrat added it was time to "heal the heart of our democracy and renew our commitment to the common good."

She also said she will "focus on getting things done" as president.

"Let me be blunt: For too long leaders in Washington have sat on the sidelines while others try to figure out what to do about the changing economy and its impact on our lives, what to do about the disruptive nature of new technologies, income inequality, the political and geographic divides, the changing climate, the tumult in our world," she said. "For a moment, let’s stop seeing those obstacles as obstacles on our path. Did we view the snow as an obstacle? No we did not. Let’s see those obstacles as our path."

Supporters of Sen. Amy Klobuchar cheer before her announcement to run for president in Boom Park, Minneapolis, on Feb. 10, 2019. Glen Stubbe / Star Tribune via AP

Klobuchar, 58, is the latest senator to join what is becoming a crowded 2020 Democratic primary field of candidates looking to unseat President Donald Trump.

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A former prosecutor, Klobuchar is looking to run on her legislative record in Congress, where she is known as a moderate who is willing to work with Republicans to achieve policy goals. Klobuchar, who just won reelection to her third term in the Senate, has pursued legislative proposals that aim to promote social media advertising transparency and lower prescription drug prices and played a prominent role in the recently passed farm bill. She also supports a Democratic Green New Deal proposal to combat climate change.

In her remarks on Sunday, Klobuchar called for passing a constitutional amendment to overturn the Supreme Court's Citizens United decision, restoring the Voting Rights Act, and passing legislation to automatically register people to vote when they turn 18.

The senator also has a record of electoral dominance in a state that is increasingly tilting closer to the middle. Klobuchar won re-election last year with over 60 percent of the vote in a state that has voted Democratic at the presidential level in every election since 1976 but only narrowly went for Democratic presidential nominee Hillary Clinton in 2016.

Klobuchar has won each of her three Senate elections by more than 20 points. Although she is somewhat of an unknown nationally, recent polling in Iowa, the first caucus state, has found that far more likely caucus-goers view her favorably than not.

Klobuchar raised her national profile during the Senate Judiciary Committee hearings last fall for then-Supreme Court nominee Brett Kavanaugh.

Klobuchar asked Kavanaugh, who faced the allegation that he sexually assaulted a woman, Christine Blasey Ford, when they were in high school, if he ever blacked out from drinking too much.

Kavanaugh, who vehemently denied the allegation, responded: "Have you?" He later apologized to the senator, who has said her father was an alcoholic.

As news of her impending announcement broke last week, Klobuchar faced criticism for reports of mistreating her staff. Citing anonymous sources, HuffPost reported that the alleged mistreatment scared off candidates to manage her presidential bid. BuzzFeed, meanwhile, reported that Klobuchar "ran a workplace controlled by fear, anger, and shame, according to interviews with eight former staffers, one that many employees found intolerably cruel."

"She demeaned and berated her staff almost daily, subjecting them to bouts of explosive rage and regular humiliation within the office, according to interviews and dozens of emails" BuzzFeed reviewed, the publication wrote.

Asked by NBC News after the event whether she is too tough on her staff, Klobuchar said she has high expectations for herself as well as her employees and thinks the country needs someone who can get things done.

“I love our staff — look at this incredible event they put together," Klobuchar said. "And, yes, I can be tough, and, yes, I can push people, I know that. But in the end, there are so many great stories of our staff that have been with me for years and have gone on to do incredible things. And I have, I’d say, high expectations for myself. I have high expectations for the people that work for me, but I have high expectations for this country. And that’s what we need. We need someone who is focused on getting things done for the country.”

Current and former staffers have also come forward to defend the senator.

“Senator Klobuchar loves her staff ― they are the reason she has gotten to where she is today,” a campaign spokesperson said in a statement to HuffPost. “She has many staff who have been with her for years ― including her Chief of Staff and her State Director, who have worked for her for 5 and 7 years respectively ― and many who have gone on to do amazing things, from working in the Obama Administration (over 20 of them) to running for office to even serving as the Agriculture Commissioner for Minnesota. She is proud of them and the work they have done for Minnesota.”

Asal Sayas, whom Klobuchar’s office referred to BuzzFeed and who was her director of scheduling for three years, told the publication, “Amy was one of the best bosses I’ve had. I found her to be incredibly fair and extremely effective.”

Trump was apparently watching Klobuchar's announcement, tweeting about the backdrop of freezing weather.

"Well, it happened again," Trump wrote. "Amy Klobuchar announced that she is running for President, talking proudly of fighting global warming while standing in a virtual blizzard of snow, ice and freezing temperatures. Bad timing. By the end of her speech she looked like a Snowman(woman)!"