My guess is that Trump, by his actions and words this week in Europe, and especially today In Helsinki, has put the Republican Party candidates in a difficult position as they turn their attention to the fall campaign. On the one hand, it will likely solidify an electoral majority against Trump and the GOP candidates. On the other hand, his mind boggling performance today as well as last week could cause fissures within Trump’s political coalition, which up to now has been remarkably stable, even in the face of actions by Trump that many of us thought would surely shake loose some of his Republican support.