11/13/2008 05:12 am ET | Updated May 25, 2011

Biden: McCain May Regret Attacks "For The Rest Of His Life" (VIDEO)

In an interview with Chris Matthews on Hardball, Joe Biden warned that McCain may ultimately regret the very harsh tenor of his current campaign:

Sen. Joe Biden said Monday that the tenor of the presidential campaign has gone "over the edge" and that if John McCain continues to push some lines of attack against Barack Obama he may regret it "for the rest of his life."

Talking about recent charges leveled against Obama on MSNBC's "Hardball," Biden said, "I just think it's unhealthy, you don't throw race [and] terrorism" into the presidential campaign. "That's a combustible mix in an environment where people are angry."

"It's not a useful time to be running an ad that says the guy consorts with terrorists," Biden said.