Obviously he realizes Obama won’t really be receptive to GOP ideas, which based on this is why I think he accepted it in the first place...he could be a voice to get some alternative ideas in the WH.
Once he came to believe that wouldn’t be the case, he decided to back out.
He’s been in the senate with Bambi for 2 years. He should have known the man’s lack of character and the fact that he never “reached across the aisle” once. It was a clear lack of wisdom and discernment on the part of Gregg to accept the role in the first place.
While not a full fledged conservative, Gregg thankfully corrected a serious error in judgment made on his part and in the process making Obama look bad.