2010 Midterms
Barack Obama's first midterm delivered a 63-seat House loss and six Senate seats to Republicans. Democratic incumbents in conservative districts were wiped out despite heavy late spending in the final weeks.
Republicans took the House majority and slashed the Democratic Senate margin.
Set the pattern that presidential parties usually lose seats in the first midterm, regardless of spending.
Republicans now fear the same first-midterm wipeout, and their late blitz is an attempt to avoid a 2010-scale loss in an equally hostile environment.
