Sen. Tom Coburn thinks he's a principled conservative. Too bad that's the same attitude that causes him to be, in the words of today's New York Times, "a thorn in the side of both parties."
The issue is Coburn's abuse of the Senate's "hold" policy, a procedure by which Oklahoma's junior senator stops action on bills he doesn't like. The problem is that Coburn finds "principled" reasons to object to dozens and dozens of bills, even ones that almost all the other 99 senators agree upon.
That makes Coburn the odd man out, which, as the Tulsa World recently noted, makes the senator "the least effective man in the Senate."
Good work, Doc. While you're preening and grandstanding, Oklahomans are getting inferior representation.