WASHINGTON - President Barack Obama is pressing his case for changes in how the Senate does business, hoping to ease the partisan gridlock, and he wants to bar lawmakers from profiting from their service. In his radio and Internet address Saturday, Obama said many people he met during his five-state tour after his State of the Union address were optimistic but remained unsure "that the right thing will get done in Washington this year, or next year, or the year after that." "And frankly, when you look at some of the things that go on in this town, who could blame them for being a little cynical?" Obama said. The president reiterated his calls for government reform made in Tuesday's address, saying he…