Quite frankly, with his Gruber connections, he wouldn't have a chance in hell of getting elected.
He wasn't even the right man for the job in 2012, he was the lesser of two evils. Running the essential founder of Romneycare against Obamacare was a failure on so many levels that I can't even begin to describe them. Things have not gotten better for him since 2012, and I'm glad he can see the writing on the wall.
Oh, I think he still wants to run, he just knows he won't win.