What they take offense to

NY Times:

"This is an affront to me personally," an angry Mr. Frist said.

He said he would find it difficult to trust Mr. Reid any longer.

"It's an affront to our leadership," Mr. Frist said. "It's an affront to the United States of America. And it is wrong."

Holding Congressional votes open all night while twisting arms until the vote goes the way the White House wants? No problem.

Letting people drown and starve while the emperor strums a guitar? No biggy.

Outing a CIA agent? Happens all the time.

Starting a friggin' war based on lies and then making a total mess of it? No big deal.

Perjury, obstruction of justice? Who really cares?

But using the Senate rules to force Senators to do what they have long promised? An affront! An affront I say! Bring me my dueling pistol!

Go Cheney yourself, Dr. Frist.