ACWORTH, Ga. (AP) — Georgia Rep. Mike Collins, who wants to take on Democratic Sen. Jon Ossoff in November, happily calls himself a warrior for President Donald Trump and his "Make America Great Again" movement.

Although it's a sensible calling card for anyone vying for a Republican nomination these days, even some of his supporters have a few concerns ahead of Tuesday's primary.

Gary Waldrep, a local party committee chairman, asked Collins at a recent campaign stop how he was going to win over at least a few of the "middle-of-the-road" voters who may have been turned off by Trump.

The question reflected Republican anxiety about the party's chances in Georgia, where Democrats have demonstrated strength in recent U.S. Senate elections and Ossoff is no longer considered as easy of a target as he once was.

"I watch the polls just like everybody else," Waldrep said. "I know it's going to be close."