Udall is a far left liberal per his voting record.
Is Colorado that freaking far left?
Entire Denver Metropolis is.
Denver metro area is, and they have more than enough busses to move voters around the state as needed on election day.
No need to go into all the inside baseball details, but former Governor Bill Owens made some bad decisions that split the party back in the 2004-2006 time frame.
Also, this was the election when Obama took Colorado based, in my opinion. on Bush fatigue.
Nearly all democrats are far left, even Republican states have elected far left democrat Senators.