Ex- Anchorage mayor backs Sen. Sullivan in tangled Alaska Senate race

Former Anchorage Mayor Dan Sullivan endorsed incumbent Sen. Dan Sullivan in Alaska's unusually crowded Senate race, intensifying a clash with a third candidate named Dan J. Sullivan who Republicans say is a Democratic plant to confuse voters. Alaska's top-four jungle primary and ranked-choice voting system add complexity to the contest, while legal fights and investigations swirl around the same-name challenger as Dan S. Sullivan and Democratic Rep. Mary Peltola move toward the general election.