Herschel Walker, the Republican Senate candidate in Georgia, has a 3-point lead against Sen. Raphael Warnock (D.), according to a poll out Thursday—the third survey in a row to find Walker ahead.

Forty-seven percent of likely voters said they are backing the former NFL star, versus 44 percent for Warnock, according to the Fox 5/Insider Advantage poll.

The findings indicate that the momentum has shifted in the highly competitive race since July, when the same poll found Warnock up by 3 points. Walker now leads by half a point in the RealClearPolitics polling average, after spending much of the summer trailing Warnock.