Just how bad does a Republican sex scandal have to get before one of these guys resigns? Rachel Maddow fills us in with the latest news on John Ensign's problems, and for anyone that would like to follow all the sordid details, I'd highly recommend reading TPM's coverage on the subject. I would imagine Rachel or her staff are reading there as well to keep up on the latest twists and turns of this story.

From TPM:

Tangled Web Of Jobs, Money, Illicit Sex Links Ensign, Former Staffers

EXCLUSIVE: Son And Husband Of Ensign's Girlfriend Work For Company Run By Ensign Backer

Is Ensign Walking Back Extortion Claim?

Ensign Has Close Ties To Second Firm That Employed Hampton

Ensign Admits He Helped Girlfriend's Husband Get Jobs

Husband Of Ensign's Girlfriend To Fox's Kelly: Help Me Expose Senator's "Relentless Pursuit Of My Wife"

Timeline Suggests Ensign's Help For Hampton Was Hardly Routine

Fox: We Didn't Tip Off Ensign About That Crazy Letter To Kelly

The Pics John Ensign Doesn't Want You To See

Ensign Lover's Hubby Wanted Money -- But Through His Lawyer