"These eighty members represent just eighteen per cent of the House and just a third of the two hundred and thirty-three House Republicans. They were elected with fourteen and a half million of the hundred and eighteen million votes cast in House elections last November, or twelve per cent of the total. In all, they represent fifty-eight million constituents. That may sound like a lot, but it’s just eighteen per cent of the population."
Ryan Lizza at The New Yorker looks at the home districts of the Republican Party's "suicide caucus."