"Life, Liberty & Levin" host Mark Levin blasted Robert Mueller and his probe into alleged Russian collusion during the 2016 election, one year to the day after Mueller was appointed as special counsel.

Levin and Sean Hannity agreed that the "Rediscovering Americanism" author already had broken what some news outlets claimed to be new revelations about a potential indictment of President Donald Trump.

.@marklevinshow on Mueller probe: "A president of the United States will not be indicted and if he is, he'll take it to the Supreme Court and he'll win." #Hannity https://t.co/S1Vpw5QcpO pic.twitter.com/QPgJX5tEQQ — Fox News (@FoxNews) May 18, 2018

"You must not, cannot indict a sitting president... as a matter of Constitutional interpretation," Hannity recalled Levin saying in 2017 on "Hannity."

Levin listed several issues with the Mueller probe, from allegations of wrongdoing in gaining a FISA warrant to spy on a former Trump aide, to using an unverified dossier to obtain such a warrant, to politicization inside the FBI and CIA.

.@marklevinshow: "The Mueller investigation...has revealed that the greatest perpetrator against the American people was the federal government." #Hannity https://t.co/S1Vpw5QcpO pic.twitter.com/UQXSsnaDi8 — Fox News (@FoxNews) May 18, 2018

"What the Hell is this, the Soviet Union? Venezuela?" he rhetorically asked.

CNN's Acosta: 'I Was Just as Tough' on Obama as Trump

'Politically-Incorrect Conservative': GA Gov Candidate Talks 'Big Truck' for Illegal Immigrants Ad

Levin said that once Mueller as a matter of procedure hands over his final report to Deputy Attorney General Rod Rosenstein, Trump should immediately act.

"Trump should pick [a] U.S. attorney and give him an assignment," Levin said.

Levin said Trump should ignore Attorney General Jeff Sessions and select a prosecutor himself, and direct that prosecutor to conversely investigate all the alleged wrongdoing on the part of the federal government during the 2016 election.

"You're talking about [alleged] spies in the Trump [campaign]?" he asked of a recent news report.

WATCH: Tucker Battles Journalist Who Objected to Trump Calling MS-13 'Animals'

Tucker: Maxine Waters Would Win Gold Medal in 'Who's Offended' Olympics