I honestly don't see how anyone could possibly take Cunningham seriously now. He went from appearin in person at a McCain campaign rally to joining the Vote for Hillary "conservative" faction literally within 24 hours.
Why? McCain didn't change his position on any issue in those 24 hours. He didn't make a racist gaffe in those 24 hours. All that happened was that McCain repudiated Cunningham's comments, and Cuningham got his widdle feewings hurt. He's a petulant child throwing a tantrum.