With victory, Isakson vows to uphold conservative principles

Now that he's won another term in the U.S. Senate, Georgia Republican Johnny Isakson is vowing to protect the security of families, work to wipe out terrorists and to ensure government regulations are fair for businesses.

In a victory speech late Tuesday, Isakson said he'll be ready to take on whatever challenges arise for the nation and for Georgia.

He told supporters he can't thank them enough for their support, but said he can repay them by focusing on conservative principals every day in Washington.

The 71-year-old, who admitted earlier in the year he has Parkinson's disease, also dealt with questions about his health.

Isakson fended off two challengers to win re-election to the Senate in Tuesday's election.

Around 10 p.m. Tuesday, Isakson said Democrat challenger Jim Barksdale had called him to concede the race and congratulate him on the victory, which Isakson said was a class act.