Sen. Michael D. Crapo was arrested on a DUI charge early Sunday morning in Alexandria, police said.

The senator posted a $1,000 unsecured bond and faces a Jan. 4 court date, Alexandria police spokesman Jody Donaldson said.

According to police, an officer saw the senator run a red light and pulled him over at Hume Avenue and Mount Vernon at 12:45 a.m.

Crapo then failed several field sobriety tests and was arrested.

The Idaho Republican has been a member of the bipartisan group of senators, first known as the “gang of six,” trying to craft a budget deal in the mold of the president’s 2010 deficit reduction commission, known as Bowles-Simpson.

Crapo is the senior senator from Idaho. He has had that distinction since Sen. Larry Craig decided not to run for re-election after his arrest and guilty plea related to a public sex sting in a Minnesota airport restroom was reported by Roll Call.

Crapo apologized in a statement this evening. “I am deeply sorry for the actions that resulted in this circumstance,” he said. “I made a mistake for which I apologize to my family, my Idaho constituents and any others who have put their trust in me. I accept total responsibility and will deal with whatever penalty comes my way in this matter. I will also undertake measures to ensure that this circumstance is never repeated.”