Zach Poskevich is looking to unseat U.S. Sen. Bob Corker in the Aug. 2 Republican Primary.During a recent campaign stop in McMinnville where he talked to residents in front of Warren County Courthouse, Poskevich was critical of Corker and his voting record.“He votes 61 percent of the time with Obama and that’s not being loyal to the residents of Tennessee,” Poskevich said.Poskevich also pointed out Corker is a member of the Senate’s Banking Committee. Yet he said Corker receives a large part of his campaign contributions from banks.“Lots of his money comes from the banking industry. In fact JPMorgan/Chase is one of Corker’s very heavy contributors,” said Poskevich.