The three-term Democrat who lost to senator-elect Dave McCormick bid farewell this week, as did Rep. Susan Wild in the U.S. House.

U.S. Sen. Bob Casey Jr., “with a heart full of gratitude,” said goodbye on Wednesday to the Senate after 18 years representing Pennsylvania. Casey, 64, lost to Republican Sen.-elect Dave McCormick in a historically close election that triggered an automatic recount.

Sen. Bob Casey on Wednesday delivered farewell remarks on the U.S. Senate floor, weeks after conceding the election to Republican Dave McCormick.