Perhaps something good will come of Gavin Newsom’s national ambitions after all. The Democratic governor of California has made his intention to run for president his defining characteristic over the past couple years. If this were a whodunnit, Newsom would be deemed too obvious to have done it. Indeed, until this week I thought he’d exhausted the list of ways to tell us he’s running. Then on Wednesday he found yet another means to telegraph his presidential aspirations: He dropped funding for