Former President Donald J. Trump over the weekend escalated his vows to prosecute his political opponents, circulating posts on his social media website invoking "televised military tribunals" and calling for the jailing of President Biden, Vice President Kamala Harris, Senators Mitch McConnell and Chuck Schumer and former Vice President Mike Pence, among other high-profile politicians.

Mr. Trump, using his account on Truth Social on Sunday, promoted two posts from other users of the site that called for the jailing of his perceived political enemies.

One post that he circulated on Sunday singled out Liz Cheney, the former Wyoming congresswoman who is a Republican critic of Mr. Trump's, and called for her to be prosecuted by a type of military court reserved for enemy combatants and war criminals.