In a sarcasm-laced letter, Gov. Tim Pawlenty on Tuesday brusquely rebuffed DFL legislative leaders' invitation to a summit meeting that would address the state's ongoing financial crisis. Late last month, Senate Majority Leader Larry Pogemiller and House Speaker Margaret Anderson Kelliher invited former governors, speakers and majority leaders to a "Minnesota Leadership Summit." In Tuesday's letter to Pogemiller and Kelliher, Pawlenty declined the invitation. "The state already has a 'Minnesota Leadership Summit,'" he wrote. "It's called the legislative session and it lasts approximately five months."