Alaska Gov. Bill Walker (I) announced he is dropping his bid for re-election, and is endorsing Mark Begich (D) against Mike Dunleavy (R), the Anchorage Daily News reports. Walker made the announcement three days after former Lt. Gov. Byron Mallott (I) stepped down from both his office and the re-election campaign over unspecified “inappropriate comments” he made to a woman. Said Walker: “In the time remaining, it has become clear we cannot win a three-way race.