Senate sets vote on resolution against mercury rule repeal

By Manuel Quiñones | 06/03/2026 06:18 AM EDT

Republicans are likely to block the Congressional Review Act resolution from advancing.

Sen. Sheldon Whitehouse (D-R.I.) arrives for a hearing on Capitol Hill Oct. 7, 2025.

Sen. Sheldon Whitehouse (D-R.I.) on Capitol Hill in October 2025. Francis Chung/POLITICO

The Senate will vote as soon as Wednesday on legislation that would overturn the Trump administration’s repeal of Biden-era rules on coal-fired power plants.

S.J. Res. 188 from Senate Environment and Public Works ranking member Sheldon Whitehouse (D-R.I.) would reinstate President Joe Biden’s update of the 2012 Mercury and Air Toxics Standards for the coal- and oil-fired electricity sector. President Donald Trump’s EPA undid the rulemaking in February.

The resolution, introduced under the Congressional Review Act, is the latest Democratic effort to force a vote against the Trump administration’s deregulatory agenda. It’s likely to fail.

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The Congressional Review Act allows lawmakers to undo rules and other administration actions by simple majority within a certain time frame. Republicans have used it repeatedly to scrap standards backed by Democratic presidents.

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