Comparing the two most Republican Houses in 70 years

Before Christmas, Arizona finished its 2nd Congressional District recount, showing Republican Martha McSally beating incumbent Democrat Ron Barber by 167 votes. This means there will be 247 Republicans in the House in the 114th Congress — one more than was elected to the House in the 80th Congress in 1946. It’s the most Republican House since the one elected in 1928, a year when very few of today’s voters were alive.

But while the party numbers are almost precisely the same in the Houses elected this year and 68 years ago, the composition of the two parties’ caucuses (the Republicans call theirs a conference) is sharply different.