Of all the ads so far attacking U. S. Senate candidate Dan Sullivan, this one, from Sen. Mark Begich himself, is the most biting and probably the most effective.

Some background: Sullivan recently released an ad where he stands atop the Dena’ina Civic and Convention Center and says that Alaska needs “real results, not just talk.” The issue: the convention center was built while Begich was Anchorage mayor, and Begich touts it as one of his biggest achievements. Hence the ad. Ouch.