“Alaska U.S. Senate candidate Dan Sullivan acknowledges that sharing a name and party affiliation with the incumbent Republican gives him ‘an instant megaphone’ in the crowded primary race. But Sullivan said his campaign isn’t a sham or something Democrats put him up to doing,” the AP reports.“He said friends for years have jokingly referred to him as senator and asked if he has ever thought about running. He said he’s been considering it for more than a decade.”