Trump is the first president in U.S. history to be impeached twice by members of the U.S. House. His impeachment earlier this month accuses him of inciting insurrection against the government after he allegedly stoked a mob of his supporters to storm the Capitol as Congress voted to certify Biden's win in the presidential election. Michael Sances, a political science assistant professor at Temple University, also notes this will be the first time the Senate will conduct an impeachment trial of a president after he has left office. One impeachment can tarnish a president's record, Sances said, but two impeachments define the outgoing president's legacy and take away the prestige associated.