Former US Attorney Rudy Giuliani — the lawyer for President Trump — threw down the gauntlet to special counsel Robert Mueller, saying the former Obama FBI director should “put up or shut up” if he has any evidence of Russian collusion.

“My ultimatum is put up or shut up, Bob,” Giuliani said on Fox & Friends. “What do you have? There are those of us who believe you don’t have anything on collusion. And by the way, if you did, it’s not a crime, so what the heck are you doing?”

Giuliani continued: “Do you have anything that shows the President of the United States was involved in a conspiracy to hack the DNC with Russia? Of course you don’t! But if you do, put out a report or give it to the Justice Department. Let them review it. Put out a report! We’re ready to rebut it.”

Giuliani was a fierce federal prosecutor in his day: His record of 4,152 convictions with only 25 reversals is one of the winningest in the history of US Attorneys.

As BizPac Review reported, the expensive, taxpayer-funded Mueller probe has yielded no evidence of collusion between Russia and the 2016 Trump campaign after two years of around-the-clock investigations.

It has, however, yielded mountains of evidence that the investigation was a corrupt, politically-motivated, sham attack on President Trump.

Hannity panel explodes over news Mueller’s right-hand man was in on Russia 'hoax’: This should kill the probe https://t.co/SKAbJVOEdA — Chiara Pisanti Barna (@Chiara65024343) September 1, 2018

Bombshell emails show that top DOJ and FBI officials under Barack Obama’s former FBI director James Comey (a Mueller pal) engaged in a willful, organized scheme to defraud the FISA court in order to illegally spy on the 2016 Trump campaign.

Bombshell emails uncovered by The Hill‘s John Solomon show that top DOJ and FBI officials under Barack Obama’s former FBI director James Comey engaged in a willful, organized scheme to defraud the FISA court in order to illegally spy on the Trump campaignhttps://t.co/ZtoMoqvIKP — CATTY PATRIOT (@Catmandu50) December 7, 2018

Giuliani: ‘My mission is to disrupt the world’ by exposing Dems’ ‘massive corruption’