Yesterday’s Democratic debate in Atlanta played out in front of Americans already exhausted by two weeks of tumultuous House impeachment hearings. At times it felt like the candidates were doing their best to offer beleaguered viewers a much-needed break from the constant stream of combative news clips cascading from Capitol Hill.

For the most part, they succeeded.

What voters saw last night was a mostly forgettable affair unlikely to spur big changes in the wide-open campaign to secure the Democratic presidential nomination. Former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE stumbled into gaffe after gaffe. Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE (I-Vt.) offered viewers another recitation of his “I wrote the damn bill” one-liner on “Medicare for All.”

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Harder to gauge is whether anyone is still paying attention. A Suffolk Iowa poll conducted after October’s Democratic debate showed two-thirds of likely caucus-goers opted-out of watching. If ratings are any indication, 2020 hopefuls are playing to smaller audiences every time they take the stage. Yesterday’s debate, held on the same day when Ambassador Gordon Sondland Gordon SondlandGOP chairman vows to protect whistleblowers following Vindman retirement over 'bullying' Top Democrat slams Trump's new EU envoy: Not 'a political donor's part-time job' Trump names new EU envoy, filling post left vacant by impeachment witness Sondland MORE provided his blockbuster testimony before the House Intelligence Committee, strained the attention spans of even dedicated political watchers.

South Bend Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE entered last night's debate as the newly-minted frontrunner in Iowa. After four debates where Buttigieg performed ably as a secondary character in a Joe Biden/Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE political drama, last night offered voters a chance to review Buttigieg the potential leading man.

He didn’t disappoint. Building on a campaign that has significantly eroded Biden’s claim to be the centrist candidate of choice, Buttigieg targeted swing voters in the American heartland with an impassioned call to end President Donald Trump’s ruinous trade war with China.

“We shouldn’t have to pay farmers to take the edge off of a trade war that shouldn’t have been started in the first place,” Buttigieg said before relating the stories of small farmers whose income has collapsed as a result of China’s ban on purchasing American crops. That message is likely to resonate among rural voters not only for its financial sense, but because Trump’s trade temper tantrum is a major driver of rising suicide rates across rural America.

In a rare moment of high drama, Buttigieg fended off attacks from fellow veteran Rep. Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention MORE (D-Hawaii), who accused Buttigieg of inexperience and mischaracterized his support for security cooperation between Mexico and the United States by claiming Buttigieg wanted to invade Mexico.

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Buttigieg’s counterpunches were cool and targeted, calling out Gabbard’s troubling relationship with Syrian dictator Bashar al-Assad and decrying the attack, correctly, as “outlandish even by the standards of today’s politics.” Gabbard has been a thorn in the side of mainstream Democratic candidates at past debates, but she failed to corner Buttigieg.

Sen. Elizabeth Warren (D-Mass.), who for the last month sat at or near the top of most national polls, recently faced withering fire from Buttigieg, Biden and other centrist candidates over her plan to transition the United States to a Medicare for All plan within three years of her inauguration. You wouldn’t know any of that from the debate, where Medicare for All was covered only in brief.

Faced with a surprising lack of direct attacks, Warren was free to deliver much of her tried-and-true campaign stump speech to the audience assembled at Tyler Perry’s new film studio. That included outlining her progressive housing policy and highlighting the importance of securing generous paid family leave for workers faced with the impossible choice of having a child or remaining competitive in the workforce.

“Housing is how we build wealth in America,” Warren said. “The federal government has subsidized the purchasing of housing for decades for white people, and has said for black people ‘you’re cut out of the deal.’” In one of her strongest moments, Warren pledged to end housing discrimination and implement new policies to even a playing field distorted by generations of racially-biased government housing policies.

On an evening when Buttigieg and Warren dominated the stage, Biden, still the frontrunner in most national polls, succeeded only in raising more questions about his fitness for office. In a particularly ghastly moment, Biden claimed the endorsement of “the only black woman elected to the Senate” as Kamala Harris Kamala HarrisTexas Democratic official urges Biden to visit state: 'I thought he had his own plane' The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements A game theorist's advice to President Trump on filling the Supreme Court seat MORE (D-Calif.), the second black woman elected to the Senate, looked on in confusion.

For Biden, whose campaign now survives almost entirely on his claim to be untouchable among African American voters in South Carolina, his inability to remember the African American senator standing just to his right is likely to generate even more anxiety among already concerned donors.

The fifth Democratic debate offered its share of quips and barbs. But faced with historic impeachment hearings and Trumpian rage-tweets, it’s unlikely yesterday’s highlights will linger in voters’ minds. That’s great news for the top four candidates — and a dangerous trend for everyone else.

Max Burns is a veteran Democratic strategist and senior contributor at Millennial Politics. He regularly makes appearances on Fox News, Fox Business, and Bloomberg Radio. Follow him on Twitter @TheMaxBurns.