As to his collegues, if you are referring to the Arizona contingent he didn’t always vote in lock step with them like my congressman Frank does, so he may have angered them with things like his support of the border fence, etc., people have to remember McCain has ruled over the AZ contingent with pretty much an iron thumb and even JD said the other night “don’t be concerned about those endorsements, I expected them.” As to scandal... no clue.
From a distance I've always been a fan of JD, but I know that McCain has a lot of party support and they are going to rip him to shreds.
It is rather telling how much dirtier McCain is willing to fight a “fellow conservative” than a so-called political opponent.