Vermont Sen. Bernie Sanders clashed with one of former President Donald Trump’s impeachment trial defense attorneys on Friday after asking him if President Biden won the 2020 election.

Sanders asked in a written note submitted during the question period of Trump’s trial, “Are the prosecutors right when they claim that Trump was telling a ‘big lie’ or in your judgment did Trump actually win the election?”

Trump lawyer Michael van der Veen asked incredulously, “My judgement? Who asked that?”

“I did!” shouted Sanders, who lost the 2020 Democratic primary to Biden.