During an appearance on MSNBC on Sunday morning, longtime Democratic campaign strategist James Carville was gleeful at how badlyDonald Trump’s re-election campaign has gone since he selected Sen. J.D. Vance (R-OH), only for things go downhill even faster after Vice President Kamala Harris became his opponent for the presidency. According to Carville, Vance went from relative unknown to a widely reviled GOP lawmaker with negative approval numbers due to scrutiny of his comments about childless women and their place in society. However, Carville noted, Vance is not the only factor dragging the T…