Talk radio host Howard Stern mocked the idea of President TrumpDonald John TrumpBiden team wants to understand Trump effort to 'hollow out government agencies' Trump's remaking of the judicial system Overnight Defense: Trump transgender ban 'inflicts concrete harms,' study says | China objects to US admiral's Taiwan visit MORE starting a competitor network to Fox News upon leaving office, saying such a venture would collapse within a year.

"[If] he thinks running the country is hard, wait till he has to run a news network," Stern said on his Monday show, according to the New York Daily News. "That’ll fail inside of a year like all the other businesses. This is just insanity what’s going on."

Trump’s businesses have declared bankruptcy on six occasions in relation to overleveraged casino and hotel ventures in New York City and Atlantic City, N.J.

ADVERTISEMENT

The president has not addressed speculation about a planned TV network but has repeatedly disparaged Fox News both before and since the election while praising more openly pro-Trump competitors to Fox’s right such as Newsmax and One America News Network.

Chris Ruddy, CEO of Newsmax and a longtime Trump confidant, said recently that he would “never” turn over control of the network to Trump.

Stern, who was a friend of Trump's and frequently had him on as a guest before Trump entered politics, called on the president to concede the election gracefully.

“For once, do something good for the country. Calm down your f---ing loony hillbilly friends and tell them you lost the election and you’re going to help the transition,” Stern said Monday. “These loonies who follow you are all worked up. They think something was taken from them.”

The president has refused to concede to President-elect Joe BidenJoe BidenBiden team wants to understand Trump effort to 'hollow out government agencies' Overnight Defense: Trump transgender ban 'inflicts concrete harms,' study says | China objects to US admiral's Taiwan visit Protect our world: How the Biden administration can save lives and economies worldwide MORE since he was projected the winner of the election, mounting a series of legal challenges to state results. Trump tweeted that Biden “won” Sunday before backtracking and tweeting, “I concede NOTHING.”