Presidential Downballot Losses: An Updated History and a Look Ahead to Trump’s Second Term By Louis Jacobson
KEY POINTS FROM THIS ARTICLE
— Since World War II, presidents have consistently presided over losses for their party in downballot offices—in the Senate, the House, governorships, and state legislatures. This is an indication of “thermostatic” public opinion, in which a decisive fraction of the electorate becomes disenchanted with the party in power and punishes them in down-ballot contests.
— President Joe Biden lost ground in the Senate, the House, and in state legislative seats. But unusually among postwar presidents, Biden escaped losses in governorships and state legislative chamber majorities controlled. In addition, Biden’s losses in the other three downballot categories were more modest than the postwar average.
— Biden’s pattern of modest down-ballot losses echoes the record of Donald Trump during his first term—setbacks, but muted ones. One possible reason: Intensifying partisan polarization, which has made voters less likely than in the past to consider voting for the other party, effectively dampening the potential for large downballot pendulum swings against the president’s party.
— Trump hasn’t faced a midterm election in his second term yet, but he has already experienced one gubernatorial flip and many flipped state legislative seats.