Facebook’s controversial (yet only mildly interesting) libra cryptocurrency plans brought Mark Zuckerberg before the House Financial Services Committee today, but the chief executive’s testimony took a startlingly android-y turn during an exchange with Representative Alexandria Ocasio-Cortez.

Fielding questions on Facebook’s advertising policies, Zuckerberg stated that while the company does not allow “voter suppression” ads, such as an ad that promotes a false election date, Facebook does allow politicians to pay to promote lies—at least in some scenarios. When pressed by Ocasio-Cortez on whether she could falsely advertise that, say, Republicans supported Green New Deal legislation under Facebook’s current rules, a fitful Zuckerberg responded that he did not know.

You can watch the full, five-and-a-half-minute exchange via the video embedded below.