Answer
Seven Republican senators, including Susan Collins, voted to convict former President Trump in his second impeachment trial. This marked a significant increase from the single Republican senator who voted to convict him in his first impeachment trial. The seven senators who voted to convict Trump were: Richard Burr (NC), Bill Cassidy (LA), Susan Collins (ME), Lisa Murkowski (AK), Mitt Romney (UT), Ben Sasse (NE), and Pat Toomey (PA).