Two and a half months before Iowa Democrats meet to caucus, the presidential candidates vying for their support danced around each other in a status quo debate during which few seemed to want to risk their candidacies on explosive confrontations.

The 10 candidates onstage largely rehashed their standard stump speeches in front of a boisterous audience at Tyler Perry Studios in Atlanta, at times taking pains to avoid the fights moderators tried to stoke.

But as new polls show South Bend, Ind., 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 surging ahead in both Iowa and New Hampshire, the rare sharp elbow deployed between contenders showed the contours of the contest have not changed much in recent weeks and that 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 remains a top target even as the millennial mayor rises.

ADVERTISEMENT

Though his poll numbers have slipped in early states, Biden remains atop national polls of Democratic voters — and therefore a threat to his fellow candidates. On Wednesday, he took criticism from 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.) for his support of the Iraq War, from Sen. Amy Klobuchar Amy Klobuchar3 reasons why Biden is misreading the politics of court packing Social media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight MORE (D-Minn.), who argued she was more electable, and from Sen. Cory Booker Cory Anthony BookerThe movement to reform animal agriculture has reached a tipping point Watchdog confirms State Dept. canceled award for journalist who criticized Trump 3 reasons why Biden is misreading the politics of court packing MORE (D-N.J.) over his refusal to endorse legalized marijuana.

Biden came prepared with his own jabs as he tries to reverse his slumping poll numbers. His campaign telegraphed an attack on Sen. 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's (D-Mass.) "Medicare for All" plan, and at one point he even criticized low-polling billionaire hedge fund manager Tom Steyer Tom SteyerTV ads favored Biden 2-1 in past month Inslee calls Biden climate plan 'perfect for the moment' OVERNIGHT ENERGY: Trump administration finalizes plan to open up Alaska wildlife refuge to drilling | California finalizes fuel efficiency deal with five automakers, undercutting Trump | Democrats use vulnerable GOP senators to get rare win on environment MORE for past investments in coal companies. He reiterated what has been his campaign's foundational message, that he would be best positioned to beat President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE in November.

"I think we have to ask ourselves the honest question, who is most likely to do what needs to be done, produce a Democratic majority in the United States Senate, maintain the House and beat Trump?" Biden said.

But Biden's most significant opponent on Wednesday may have been himself, as he stumbled through several answers, correcting himself even on the answers he appeared to have practiced most.

"We should build on ObamaCare, provide the plan I put forward before anybody in here, adding a Medicare option in that plan and not make people choose. Allow people to choose, I should say," Biden said, hitting plans from Sanders and Warren to expand Medicaid to all Americans.

ADVERTISEMENT

Later, he claimed to have been endorsed by the "only" African American woman ever elected to the United States Senate — while standing several podiums away from the second African American woman elected to the United States Senate.

"So far his enduring support in the Democratic primary hasn't been based on debate performance," said Adam Hodge, a former communications director for the Democratic National Committee. "Tonight [Biden] explicitly made the electability argument and linked it directly to electing more Democrats who can pass his agenda."

Buttigieg, the new front-runner who has irritated some of his opponents, has taken the lead in polls conducted for the Des Moines Register and CNN in Iowa and for St. Anselm College in New Hampshire in recent days. He skated through the vast majority of Wednesday's debate without suffering significant damage, even as moderators prompted other candidates to engage.

Klobuchar said last week that a woman with Buttigieg's equivalent experience would not have been on the debate stage; on Wednesday she called Buttigieg qualified. Harris expressed frustration earlier this week with a stock photo Buttigieg's campaign had used that showed a woman from Kenya rather than the United States; at the debate she acknowledged that Buttigieg had apologized. Biden, who has suffered most from Buttigieg's rise, did not engage the young mayor, and neither did Warren, who had sparred with him the most in the last several debates.

Both Klobuchar and Harris circled back to Buttigieg in the closing minutes of the debate. Klobuchar credited Buttigieg with saying "the right words" on election reform measures, but added, "I actually have the experience leading."

Harris, asked to criticize Buttigieg's use of the stock photo, offered a broader if subtler critique that he would struggle to rebuild the coalition that carried former President Obama to the White House in 2008 and 2012.

"The larger issue is that for too long I think candidates have taken for granted constituencies that are the backbone of the Democratic Party and have overlooked those constituencies," Harris said. "We've got to recreate the Obama coalition to win."

But as candidates danced around Buttigieg, it was a far lesser-known contender, 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 seemed to draw the most fire among the other nine candidates on stage.

Gabbard, an iconoclast who stands apart from mainstream Democratic positions on foreign policy and who once opposed same-sex marriage, clashed with Harris at an earlier debate. Harris seemed to be waiting for her chance to respond Wednesday, when she said Gabbard "spent four years full time on Fox News criticizing President Obama."

Later, Gabbard attacked Buttigieg for saying he would be open to sending American troops to Mexico, distorting his words from a forum with Hispanic voters on Sunday during which he talked about security cooperation between the two neighbor nations.

"Do you seriously think anybody on this stage is proposing invading Mexico?" Buttigieg asked. "If your question is about experience, let's also talk about judgement. One of the foreign leaders you mentioned meeting was [Syrian President] Bashar al-Assad. I have in my experience, such as it is, whether you think it counts or not since it wasn't accumulated in Washington, enough judgement that I would not have sat down with a murderous dictator like that."

The crowd audibly applauded both Harris and Buttigieg.

Wednesday's debate marked the first of the Democratic primary contest in which candidates were asked about the complex foreign policy challenges facing the globe today — whether to negotiate with the Taliban or North Korean leader Kim Jong Un Kim Jong UnNorth Korean leader Kim apologizes over killing of South Korean official Pelosi knocks Trump over refusal to commit to peaceful transfer of power Satellite images indicate North Korea preparing for massive military parade MORE or how to handle the relationship with Russian President Vladimir Putin Vladimir Vladimirovich PutinWatchdog confirms State Dept. canceled award for journalist who criticized Trump Former intelligence agency director Robert Cardillo speaks out against 'erratic' Trump Kremlin: Putin calls for reset between US and Russia on cyber relations before elections MORE or demonstrations in Hong Kong.

It also marked the first Democratic debate in which Warren did not dominate the conversation. Though Warren talked for a longer period of time than any other candidate, she was neither the source nor the target of major flashpoints throughout the night.

With more than two months to go before Iowa voters caucus, Democratic strategists said the campaigns are still focusing on introducing themselves to voters — especially at a moment when most political attention is focused on the impeachment inquiry into President Trump.

"People got a contrast today between a party talking about their lives versus a party running a playbook from 'The Sopranos,'" said Jesse Ferguson, a former top aide to Hillary Clinton Hillary Diane Rodham ClintonBloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close Trump pledges to make Juneteenth a federal holiday, designate KKK a terrorist group in pitch to Black voters MORE's 2016 campaign. "Candidates are still introducing themselves to voters, and polls show the majority of primary voters are still not firmly committed to a candidate."

There is plenty of time left for the polls to fluctuate — at this point in the 2004 election cycle, former Vermont Gov. Howard Dean (D) and House Minority Leader Dick Gephardt (D-Mo.) were fighting for the lead in Iowa. Several weeks later, Dean finished third and Gephardt fourth, behind former Sens. John Kerry John Forbes KerryThe Memo: Warning signs flash for Trump on debates Divided country, divided church TV ads favored Biden 2-1 in past month MORE (D-Mass.) and John Edwards (D-N.C.).