The U.S. Senate is poised to vote on a measure that could block California's ambitious rule banning the sale of new gas-powered cars by 2035, a significant step in vehicle emission regulation.

Senate Majority Whip John Barrasso is advocating for the Congressional Review Act (CRA) to proceed, asserting that the EPA's rule is eligible for review.

While Senators Lisa Murkowski and Susan Collins support repealing the mandate, they have expressed concerns about undermining the authority of the parliamentarian.

The Senate parliamentarian, Elizabeth MacDonough, has ruled that the CRA cannot be used for this purpose, leading to a clash over her authority.

MacDonough's independent role has frustrated both parties in the past, as she has blocked various legislative attempts under budget constraints.

Critics have condemned the GOP's decision to override the Senate's nonpartisan procedure arbiter, warning that it sets a dangerous precedent for legislative processes.

The Senate's actions reflect ongoing partisan tensions, with both parties having previously altered filibuster rules to advance their agendas.

This situation has significant implications for environmental policy and the legislative process, as it challenges established norms regarding the CRA.

Experts criticize the GOP's move as an attempt to undermine state authority in climate initiatives, favoring federal control over local regulations.

Senator Alex Padilla warned that the GOP's actions could have long-term negative consequences for clean energy and the integrity of the Senate.

Democrats argue that Republicans are prioritizing the interests of the oil and gas industry over environmental protections and assert California's right to set its own standards, supported by waivers from the Environmental Protection Agency.

White House spokeswoman Taylor Rogers defended the GOP's position, claiming it protects Americans from state overreach in energy policy.