To “reckless” and “trigger-happy” (see post below) you can add “crooked,” or at least “collaborator with crooks.”
Lindsay Beyerstein sums up the case: [Background here]:
McCain did go easy on Ralph Reed and a lot of other well-connected Republicans. Ralph Reed and Grover Norquist were at the very center of the plot to defraud American Indian tribes of tens of millions of dollars. Reed wasn’t just an Abramoff crony, he was co-conspirator.
Ironically, we don’t know the full extent of Reed’s culpability because McCain refuses to release something like 70% of all the documents he amassed in his inquiry. Henry Waxman says that McCain won’t even release some of these documents to the House Oversight Committee.
McCain knows exactly how dirty Reed is, though. He has no business taking money from Reed and calling himself a maverick. Moreover, McCain agreed to attend Ralph Reed’s fundraiser, which is a deeper level of involvement than simply taking his money.