That would require Democrats to win nearly all the Republican seats for which they are even in striking distance now. It includes affluent suburbs filled with the college-educated white voters that Mr. Trump has struggled to reach. House Republicans have strong defenses in the congressional district boundaries, which set the terms of competition. “Not my first choice,” Mr. Yoder said in May, offering only a tepid endorsement of Mr. Trump. No,” said David Winston, a strategist for House Republican leaders.

Source: New York Times August 16, 2016 12:33 UTC