John Sides is right that this is actually very good news for politicians:
Political science really does empower politicians. It tells them to ignore a lot of gossip and trivia. It tells them not to sweat every rhetorical turn of phrase.... Freed from these concerns, politicians can, as Ezra suggests, focus on what they really can and do affect: the policy agenda and the content of legislation.As Ezra pointed out during the APSA panel on journalism, it's actually fantastic news for all of us that these little things don't matter. What if the fate of the Republic really was affected by Michelle Obama's choice of vacation destination? Would we want to live in such a world? Voters, for all their shortcomings, tend to vote on non-trivial things like war and the state of the economy, and good for them for doing so.