Among the vulnerable incumbents, Raphael Warnock faces a close contest in Georgia, despite rival Herschel Walker s campaign being dogged by controversy.
The moderate Republican lacks the support of the former president, who won the state by 10 points just two years ago. That doesn t necessarily point to defeat.
A poll shows Senator Lisa Murkowski and Representative Mary Peltola ahead of Trump-backed candidates Sarah Palin and Kelly Tshibaka in a hypothetical election.