Nine kinds of races that will decide the fate of the House

With 18 days until Election Day, Democrats are the clear favorites to take the House, thanks to President Donald Trump’s poor approval ratings, a historic number of GOP open seats and record-shattering Democratic fundraising.

But it’s not a done deal yet.

Roughly a sixth of America will decide the House. As of Friday, the Cook Political Report rates 75 of 435 seats as vulnerable to a takeover, and it’s a lopsided list: 70 are held by Republicans, and only five are held by Democrats. Democrats only need a net gain of 23 seats to win the majority, so winning even two-fifths of these 75 seats would get them there. CONT.

David Wasserman, NBC News