Olympian: Gov. Chris Gregoire admits that her greatest disappointment at the end of the 2009 legislative session was lawmakers’ failure to pass her climate control legislation. In an interview with The Olympian’s editorial board, Gregoire said she went to the wings of the Senate on the last evening of the 105-day session to make a personal plea for passage of her bill, which would put limits on pollution emissions. The so-called “cap and trade’ legislation would put a system in place that would …