GARY INTRO: The Republican Party state convention is underway at the Xcel Energy Center in St. Paul. This evening, delegates will endorse their candidate for the US Senate: Norm Coleman. But it's anybody's guess whether businessman Brian Sullivan or legislative leader Tim Pawlenty will win the party's endorsement for Governor. Minnesota Public Radio's Gary Eichten reports........ The Coleman endorsement is a foregone conclusion. He is (virtually) unopposed. But tomorrow's contest for Governor looks like a real toss-up. Sullivan will apparently go into the voting tomorrow with a narrow lead but neither candidate is expected to be close to the 60% delegate support needed for endorsement. Minnesota Public Radio's Tom Scheck joins us now with the latest on the contest for Governor..... ______________________