Obama heads to Georgia as Herschel Walker faces new violence claim

Former president to rally for Raphael Warnock against Trump-backed Republican as early voting closes in Senate runoff

Barack Obama will campaign for Raphael Warnock in Georgia on Thursday night, as early voting in the US Senate runoff closes and as Herschel Walker, the Republican challenger to the Democratic incumbent, faces yet more controversy.

On Thursday, a former girlfriend told the Daily Beast that in 2005, when she caught Walker with another woman, he grew enraged, put his hands on her chest and neck, and swung his fist at her".