One of the most vulnerable Senate Democrats, Sen. Sherrod Brown (D-OH), is joining a bipartisan effort to kill a key funding mechanism for the Biden administration’s electric vehicles plan.

Brown is joining the Congressional Review Act resolution to toss the tax credit rules backed by a bipartisan group of lawmakers, including Reps. Carol Miller (R-WV) and Jared Golden (D-MA) and Sens. Joe Manchin (D-WV) and Deb Fischer (R-NE). The rules offered tax credits between $4,000 and $7,500 to purchase new and used EVs.