Special counsel Jack Smith is readying a more than 200-page motion in the Jan. 6 case against former President Donald Trump, one of the most significant developments that will occur in that legal battle before the 2024 election.

Smith’s extensive motion, due by Thursday in Washington, D.C., federal court, is expected to focus on overcoming the presidential immunity protections clarified by the Supreme Court ruling on the matter this summer. Meanwhile, Trump gained a reprieve in Smith’s separate classified documents in Florida when a federal appeals court agreed to his request to delay a response over Smith’s bid to revive that case.