Former President Barack Obama is asking Oregonians to give Gov. Tina Kotek a second term, four years after he endorsed his fellow Democrat in her first gubernatorial bid. “Hey Oregon, Barack Obama here,” the former president states in a 48-second video released by Kotek’s campaign Tuesday. “You know what’s on the line in this election? Your healthcare. Your reproductive rights. Your ability to vote by mail. That’s why we need your governor, Tina…