4 Weeks Out, Senate Control Hangs in the Balance in Tumultuous Midterms

Exactly one month until Election Day, Republicans remain favored to take over the House in November, but momentum in the pitched battle for the Senate has seesawed back and forth as a multimillion-dollar avalanche of advertising has blanketed the top battleground states.

For almost two decades, midterm elections have been a succession of partisan waves: for Democrats in 2006, Republicans in 2010 and 2014, and Democrats again in 2018. Yet as the first mail-in ballots go out to voters, the outcome of the 2022 midterms on Nov. 8 appears unusually...