Zuckerberg will testify before a joint hearing of the Senate Judiciary and Commerce Committees on Tuesday.
The answer, as Zuckerberg surely knows, is yes. And yet, the question followed Facebook's founder to the floor of the US Senate.
Political score at the end of that round: Durbin 2, Zuckerberg 0. But it was a potent one.
Facebook has promised it will now verify the identity of political groups that place campaign ads on the social media platform. Zuckerberg famously, and somewhat ironically, is very guarded about his private life.
That disclosure pitched Facebook into a crisis of confidence among users, advertisers, employees and investors who were already struggling with Facebook's reaction to fake news and its role in the 2016 election.
And how do you defend that?
In other words, the judge didn't say Facebook wasn't doing it, but rather that it the plaintiffs could have prevented it. "User control" was what Zuckerberg clung to all day.
"This was a big mistake on our part, and I'm sorry for it", he wrote on Facebook's blog 12 years ago. "Until we get it automated, there's a higher error rate than I'm happy with".
That sounds benign, doesn't it? Depending on which post you see, you'll find out whether or not your data was included in the 87 million profiles swept up on behalf of Cambridge Analytica. He served as technology and economic policy adviser in the Obama White House, and until recently was United States privacy and public policy adviser for Facebook.
"If you've messaged anyone this week, would you share with us the names of the people you've messaged", the Senator asked Zuckerberg.
Sen. Ted Cruz also brought up Diamond and Silk during his heated exchange with Zuckerberg on Tuesday, citing them as an example of what he characterized as Facebook's "pattern of bias and political censorship".
"There have been reports that Facebook can tracks a user's internet browsing activity even after that user has logged off of the Facebook platform", stated Senator Wicker.
So let's return to Senator Durbin's hypothetical. "Would you be comfortable sharing with us the name of the hotel you stayed in last night?"
Those changes could dramatically curtail Facebook's power and its revenue - and that's the point. "You know there are people in Russian Federation whose job is to exploit our systems... so this is an arms race", he said.
Representative Mike Doyle, a Pennsylvania Democrat, said, "The only way we're going to close this trust gap is through legislation that creates and empowers a sufficiently resourced expert oversight agency with rule-making authority to protect the digital privacy and ensure our companies protect their users' data".
"Something that I've been hearing a lot from folks who have been coming up to me and talking about a kind of experience they've had where they're having a conversation with friends - not on the phone, just talking".
"I'm sure that what we're going to hear - call it the apology tour - Mark Zuckerberg is going to admit that things were done incorrectly, they took their eye off the ball, they're going to do better", Collins said on the Fox Business Network on Tuesday. That detail slipped by anyone reviewing Kogan's app for compliance.
In their videos on Facebook, one sister, Hardaway, criticizes Trump's opponents, while the other, Richardson, agrees alongside her.