Former Secretary of State Hillary Clinton looked eager to shake off her surprising loss to Sen. Bernie Sanders in the Michigan Democratic primary as the two candidates sparred over immigration, climate change and Wall Street during Wednesday night's Democratic presidential primary debate in Miami. While Clinton still has a delegate lead over Sanders, the Vermont independent's populist campaign isn't going away anytime soon, particularly after racking up a win like Michigan. So Wednesday's debate was the first opportunity for Clinton to try and rebound — and for Sanders to try and build his momentum. Here are the seven most interesting moments from the debate:

1. "Not even answering that question"


Early in the debate Clinton was asked whether she'd drop out of the race if she's indicted over the investigation into the private email server she used during her time as secretary of state.

Clinton tartly refused to even entertain that scenario — or the question.

"Oh, for goodness — that is not gonna happen," Clinton said. "I'm not even answering that question."

2. Sanders ticked off by Minutemen charge

In response to Clinton's accusation that Sanders supported the Minutemen patrols along the Mexican border, Sanders bristled, saying the very accusation itself was a "horrific" attack line based on a distortion of the facts.

"No, I do not support vigilantes, and that is a horrific statement and unfair statement to make," Sanders said. "I will stand — my career, political career fighting for workers, fighting for the poorest people in this country. Madam Secretary, I will match my record against yours any day of the week."

Clinton was referring to a particular amendment that Sanders voted for in 2006 aimed at protecting the Minutemen. The amendment, as described by the measure's sponsor, then-Rep. Jack Kingston, "says that the U.S. Government cannot tip off the Mexican officials as to where these folks are located."

3. Clinton ridicules Trump in response to border wall question

The moderators pressed Clinton about statements she previously made in New Hampshire suggesting she supported building some kind of wall along the southern border with Mexico, and what the difference was between her proposal and Donald Trump's signature wall-building vow.

Clinton adopted a mock Trump tone, saying, "First of all, as I understand him, he's talking about a very tall wall, right, a beautiful tall wall, the most beautiful tall wall, better than the Great Wall of China that would run the entire border, that he would somehow magically get the Mexican government to pay for, and, you know, it's just fantasy."

"And in fact, if he cared to know anything about what members of Congress like the senator and I have done, where it was necessary, we did support some fencing," Clinton added to answer the question about her own wall support. "Where it was necessary, we did add border patrol agents. We have done what by any fair estimate would have to conclude is a good job, quote, securing the border. So let's get about the business of comprehensive immigration reform."

4. Clinton: "I'm not a natural politician like my husband or President Obama"

Later, Clinton moved to differentiate herself from her husband or President Barack Obama, offering a moment of self-deprecation.

"I am not a natural politician, in case you haven't noticed, like my husband or President Obama, so I have a view that I just have to do the best I can, get the results I can, make a difference in people's lives and hope that people see that I'm fighting for them and that I can improve conditions economically and other ways that will benefit them and their families," Clinton said in response to a question about a Washington Post poll saying many Americans do not trust her.

5. Boos on Benghazi questions

Even before the moderators could finish a question about the attack on the U.S. consulate in Benghazi, the crowd showered them with boos.

OK, next question. I want to continue with the issue of trust. Secretary Clinton, on the night of the attacks in Benghazi, you sent an email to your daughter Chelsea saying that Al Qaeda was responsible for the killing of the Americans," moderator Jorge Ramos began, sparking catcalls from the audience.

"However, some of the families claim you lied to them, the mother of the information officer," Ramos continued over the crowd noise before finally asking: "Secretary Clinton, did you lie to them?"

Top moments of the Democratic debate

"So I testified for 11 hours," Clinton responded. "Anybody who watched that and listened to it knows that I answered every question that I was asked, and when it was over, the Republicans had to admit they didn't learn anything. Why? Because there had already been one independent investigation, there had been seven or eight congressional investigations, mostly led by Republicans who all reached the same conclusions, that there were lessons to be learned."

6. Sanders and the Koch brothers

At another point during the debate, Clinton moved to link Sanders to the Koch brothers.

"The leaders of the fossil fuel industry, the Koch brothers, have just paid to put up an ad praising Sen. Sanders," Clinton said.

Her comment came the same day that the Koch brothers-backed Freedom Partners group released a new web video praising Sanders for opposing the Export-Import Bank.

But Sanders scoffed at the attack and slammed the conservative megadonors.

"There is nobody in the United States Congress who has taken on the Koch brothers, who want to destroy Social Security, Medicare, Medicaid and virtually every federal program passed since the 1930s, more than Bernie Sanders," Sanders said.

7. "Excuse me" again

After Sanders stopped Clinton from interrupting him during the previous debate by saying "excuse me, I'm talking," Clinton tried to pay him back in kind on Wednesday.

During an exchange over climate change, Sanders tried to talk over Clinton, saying "I have introduced ..."

But she curtly interjected with a well-timed "Excuse me. Excuse me," as the crowd applauded.

Sanders pressed on, trying to get his answer in.

"Did you ask me to speak?" Sanders said, pointing toward the moderators.