I was responding to the title of the OP and the hyperlink which states
Woman Now Accusing Herschel Walker of Paying for Abortion Was Supportive of His Campaign Earlier This Year
Admittedly, I have not been following Walker's "ascent" in politics and only have heard about him recently since the allegations of hypocrisy both by his son and one of his former partners which brought his race as a Republican for a Senate(?) seat to the forefront.
My comment was only to point out that It's quite possible that she initially was supportive of his campaign (maybe) until he started in on the abortion angle. If what she says is true, that he's supported abortion in the past when it served his purpose but is now against all abortion no exceptions, then I would imagine his hypocrisy was the reason for her changing her stance and withdrawing her support of him.
Again, IF what she says is true but I'd tend to believe her over him if for no other reason than the point his son made. That Walker is running his platform on "family values" yet has 4 different children with 4 different women and wasn't in the home to raise any of them.