In the 2012 Presidential Election, Democrat Barack Obama decisively defeated Republican Mitt Romney. Obama won 332 electoral votes and the national Presidential popular vote by nearly 4%. Despite this crushing victory, Obama headed into his second term in office without a majority in the US House. House Republicans lost the popular vote by 1% but still won a 234-201 majority in the chamber. This outcome did not surprise shrewd political observers—Republicans held a considerable structural advantage in the US House throughout the 2010s. In fact, according to FairVote, Republicans would expect to win a 241-194 majority in a tied national...