Chuck Todd: Why control of the House will shape the next presidency

One of the more remarkable aspects about the current political era is how closely contested control of all parts of the federal government is these days.

It’s not just the presidency that’s on a knife’s edge — so is the House, and even the Senate is highly competitive, though a GOP takeover this cycle is looking closer and closer to inevitable.

We could see all three change party control in the same election cycle, without their all ending up in the hands of the same party — an outcome that would be quite astonishing and unprecedented. And yet, as unusual as that would be, in another way, it would be sort of par for the course, considering how polarized and closely divided we are as a country.