So how ugly would it get if THIS happened on Election Day
12th Amendment kicks in.
...the new House of Representatives would pick the president: each of the 50 delegations would get a single vote. Given that Republicans are almost assuredly going to control a solid majority of House delegations in the next Congress, Romney would win.
We don’t have a dog in this race, but we are rooting for one thing: no tie! A 269-269 Electoral College outcome would inevitably be a national crisis on par — or worse — with the 2000 Florida cliffhanger, especially if Romney lost the popular vote.