Former Republican Rep. Liz Cheney (Wyo.) urged the Supreme Court to reject former President Donald Trump s claims of absolute immunity from prosecution when it hears arguments on the matter Thursday, saying his efforts to delay and dodge standing trial risk breaking American institutions of law and order.

Cheney, who served on the House select committee investigating the origins of the Jan. 6, 2021, attack on the U.S. Capitol, wrote an opinion piece published in The New York Times on Sunday. In the piece, she said the Supreme Court should quickly rule against Trumps efforts to see the federal indictment for his role in the insurrection tossed out. The former president has argued he should be immune from prosecution for anything he did while in office, a broad interpretation that would also imperil the cases against him in Georgia and Florida.

As a criminal defendant, Mr. Trump has long had access to federal grand jury material relating to his Jan. 6 indictment and to all the testimony obtained by our select committee, Cheney wrote in the piece. He knows what all these witnesses have said under oath and understands the risks he faces at trial.

Thats why he is doing everything possible to try to delay his Jan. 6 federal criminal trial until after the November election, she added.

The lawmaker stressed the work of the Jan. 6 House select committee, which released in 2022 a scathing report of Trumps behavior, relied on testimony from dozens of Republicans who worked in the White House.