You would have to know what arrogant rat bastards both Pawlenty and Kennedy are. Pawlenty is mighty pissed that association with his hero Dubya is causing Democrats and Republicans alike to lose so many elections.
You see, there is a history of some bad blood between the boys here. The Bush/Cheney Republican party has been grooming Pawlenty for higher office for quite awhile now. Cheney hand picked Sen. Norm Coleman to run against Wellstone, Pawlenty to run for governor, and Kennedy for the one of MN's largest Republican suburban House seats. But Pawlenty had intended to run for senator, not governor. However, he was slapped down by Cheney himself, and told to run for governor. No one knows for certain what the quid pro quo was, but everyone knows Pawlenty has his eye on the US Senate. So he is jealous that Kennedy, a mealy mouthed, rubber stamping Republican yes man, has the shot at the golden ring he is missing out on.
Hence, the weenie remark to the national media while at the governor's conference.