Penn State classmates Bo Carper and Jeff Miller. Delaware's U.S. Senators are Tom Carper (Democrat) and Chris Coons (Democrat). After Tom Carper defeated Roth in 2000, Biden became Delaware's senior senator. He lost to incumbent Senator Tom Carper. Republican candidate businessman Gene Truono answered questions from panelists before Carper and Harris debated. Incumbent Democratic Senator Tom Carper was re-elected to a fourth term. Wade, an engineer and businessman, also ran against U.S. Senator Tom Carper in 2012. Incumbent Democrat Tom Carper won re-election to a third term. Their third studio album was produced by Fidlar lead vocalist Zac Carper. Only one debate was held between Carper, Wade, and Independent candidate Pires. Tom Carper and Rob Arlett were also invited to the debate, but did not attend. In December 2008, CARP expired and the following year CARPer was passed. Carper was re-elected in another landslide, beating Wade 66% to 29%. Carper declared his candidacy in September 1999. Carper defeated Roth by over ten points.