In 2021, Senator Elizabeth Warren (D., Mass.) led the fight to keep President Biden from reappointing Jerome Powell as chairman of the Federal Reserve. (Her main issue was bank regulation, but she also takes a dovish approach to monetary policy.)

Former Fed official Randal Quarles has said that uncertainty about the Fed’s leadership delayed the central bank’s response to rising inflation.

A more halting Fed response likely led to inflation rising more, and subsiding more slowly, than it otherwise would have.

Which led to more voter anger at the incumbent party than there would otherwise have been.

Warren may thus have helped bring Trump back into office.