Joe Manchin in blue suit with purple tie
U.S. Sen. Joe Manchin (D-WV) speaks at a press conference at the U.S. Capitol on September 20, 2022 in Washington, DC.
  • Sen. Joe Manchin often drew the ire of Democrats for blocking Biden's climate agenda.
  • But Manchin managed to hold a blue seat in a red state, and was key to major climate legislation.
  • His successor will almost certainly be a Republican and, likely, a worse climate ally.

Democratic Sen. Joe Manchin has often made headlines for thwarting President Joe Biden's climate change agenda — but climate activists will likely miss him when he's gone.