One principle left

John McCain once bucked his party's doctrine. No more. He couldn't win the nomination that way.

John McCain once bucked the "agents of intolerance." No more. He couldn't rally the base that way.

John McCain once opposed torture. No more. He couldn't suck up to the Bushists that way.

John McCain once took a dim view of war. No more. He couldn't be a Republican without advocating more force, more often.

John McCain once advocated deregulating just about everything. No more. He can't win as the doctrinaire Republican he has become, so he's pivoting away even from things he has believed for his entire political career.

The only remaining constant in John McCain's program is me, me, me. He says he's for country first, but he really only puts himself first.