Hillary Clinton should have seen that Wall Street shot coming. Instead, she compounded the damage.

The former secretary of state was off to a sound outing in Saturday night’s debate against Senator Bernie Sanders of Vermont and former Gov. Martin O’Malley of Maryland. Friday’s terrorist attacks in Paris dominated at first, allowing her to highlight her superior experience in world affairs. But it was those attacks that made her badly muffed response to questions about her fealty to Wall Street all the more jarring. Here’s the exchange:

Mr. Sanders: “I have never heard a candidate, never, who has received huge amounts of money from oil, from coal, from Wall Street, from the military-industrial complex, not one candidate say, oh, these campaign contributions will not influence me. I’m going to be independent. Well, why do they make millions of dollars of campaign contributions? They expect to get something. Everybody knows that. Once again, I am running a campaign differently than any other candidate. We are relying on small campaign donors, 750,000 of them, 30 bucks apiece. That’s who I’m indebted to.”

Mrs. Clinton: “Well John, [John Dickerson, the moderator] wait a minute. Wait a minute, he has basically used his answer to impugn my integrity. Let’s be frank here.”

Mr. Sanders: “No, I have not.”

Mrs. Clinton: “Oh, wait a minute, senator. You know, not only do I have hundreds of thousands of donors, most of them small. And I’m very proud that for the first time a majority of my donors are women, 60 percent. So, I represented New York, and I represented New York on 9/11 when we were attacked. Where were we attacked? We were attacked in downtown Manhattan where Wall Street is. I did spend a whole lot of time and effort helping them rebuild. That was good for New York. It was good for the economy and it was a way to rebuke the terrorists who had attacked our country.”

Predictably, Twitter exploded with demands to know what campaign donations from big banks had to do with New York’s recovery from 9/11. Answer: little to nothing. Since 2001, she and Bill Clinton have earned more than $125 million for speeches, many of the most lucrative made before financial groups. That does not account for the millions given directly to her campaign, and to political action committees backing her. Nearly 15 years after the 2001 attacks, Mrs. Clinton was earning more than $200,000 for a 20-minute speech. Most of those took place behind guarded doors. But one can guess that she and the financial executives were not still talking about 9/11.