Former Donald Trump lawyer Michael Cohen issued new denials on Thursday that he was in Prague, in the Czech Republic, during a period of time in 2016 when an anti-Trump intellignce dossier's author wrote that he met there with Russian agents about how to interfere with the presidential election.

'I hear #Prague #CzechRepublic is beautiful in the summertime. I wouldn’t know as I have never been. #Mueller knows everything!' Cohen tweeted.

His flat rejection came after McClatchy reported that a cell phone belonging to him was detected near Prague during the late summer months before Trump beat Hllary Clinton. The story was based on four separate sources with independent contacts in unnamed intelligence circles.

Asked by a pair of skeptics if he had ever been inside the Czech Republic for any reason, Cohen replied to each: 'NO.'

Intercepts from an Eastern European intelligence service have reportedly established that around the same time Cohen-linked phone signals were pinging among Czech cell phone towers, a group of Russians noted Cohen's presence in Prague.

McClatchy didn't explore in print the possibility that a Cohen adversary might have obtained the unique digital ID of his phone and put it on another one, a simple task for the technically inclined.

A new report based on four separate intelligence sources suggests that a phone traced back to former Donald Trump lawyer Michael Cohen was turned on near Prague, in the Czech Republic, in the fall of 2016 – despite his insistence that he's never been there

It's relatively easy to change the International Mobile Equipment Identity number of an Apple or Android phone; that raises the possibility that someone could have 'cloned' his phone and switched it on somewhere in order to simulate him being there

Free online tools are available to change Android (above) and iPhone (top above) devices' digital 'fingerprints'

Cohen tweeted Thursday after McClatchy published its story that he's maintaining he has never visited Prague

Every phone carries an International Mobile Equipment Identity number, or IMEI, an electronic fingerprint that can be altered. Instructions for the hack are readily available online, covering both Apple and Android devices.

That raises the possibility that a foreign agent who obtained the ID number of Cohen's phone could have cloned it and switched it on somewhere in order to suggest he was present.

Democratic fundraiser Scott Dworkin blasted Cohen on Twitter, attracting the first of his two 'NO' denials.

'Cut the s**t, Michael,' Dworkin tweeted. 'You think it’s cute to say you’ve never been to Prague when it could be a suburb of Prague or on the outskirts. Answer this question, smart guy: Have you ever been in the Czech Republic ever? For any reason? At any time? Ever?'

Vermont Law School professor Jennifer Taub challenged him separately and got the same answer: 'Quick follow up if I may. Have you ever been to any location within the Czech Republic? Asking for several hundred million friends.'

Cohen's never-in-Prague statement drew sneers from liberals who thought he was dodging the possibility he had visited other parts of the Czech Republic – an idea that brought two separate responses of 'NO'

Cohen faces three years in prison for a range of crimes including tax and bank fraud, campaign finance law violations and lying to the FBI about a Trump Tower deal proposed for Moscow while Trump was running for president.

That sentence was the product of a cooperation agreement with Special Counsel Robert Mueller's office and the U.S. Attorney for the Southern District of New York.

It's unknown whether he has told Mueller anything significant about a Prague meeting. But the infamous Steele dossier, a collection of unproven allegations about links between the Trump campaign and Russian agents, included a claim about Cohen meeting in Prague with a Kremlin agent to discuss Russia's plan for U.S. election-meddling.

The intelligence operation that produced the dossier, it was revealed last year, was funded by the Democratic National Committee and Hillary Clinton's presidential capmaign.

Cohen denied ever being in Prague after an anti-Trump intelligence dossier described a secret meeting there between him and a Kremlin-connected agent during the 2016 campaign – a get-together that included discussion of how to pay hackers to interfere with the U.S. election

Cohen has gone after the McClatchy news service in the past, insisting that its reporting about a potential Prague tie was false

McClatchy pointed in April to Konstantin Kosachev, an ally of Russian President Vladimir Putin, as the likely Moscow agent Cohen allegedly met in Prague.

The Trump administration slapped Kosachev with stern sanctions this year for his role in Moscow's plan to destabilize Election Day in America.

Kosachev and Cohen have flatly denied being in Prague during the relevant time period. Cohen has gone further, saying he has never been inside the Czech Republic.

Both men have denied having anything to do with a plot to monkey-wrench the 2016 U.S. elections.

The dossier alleged that Cohen and Kosachev, and other people they met with, talked about 'how deniable cash payments were to be made to hackers in Europe who had worked under Kremlin direction against the Clinton campaign.'

Cohen allowed a Buzzfeed reporter to photograph his passport in May. It showed no evidence that he entered that country. It also suggests that, at least since 2009, he has not been to Germany, something the Steele dossier included among its list of purported facts.

Christopher Steele, the former British spy who compiled the dossier, wrote that Cohen entered the Czech Republic from Germany.

Investigators working with Special Counsel Robert Mueller (center) reportedly have evidence that Cohen entered the Czech Republic through Germany in August or September of 2016; Cohen provided information to Mueller in advance of a plea deal for bank and tax fraud and campaign finance violations, cooperation that limited his prison sentence to three years

Cohen has repeated his never-in-Prague insistence a half-dozen times since early 2017 when Buzzfeed first published the dossier.

'I have never been to Prague. Get over it,' he tweeted at CNN anchor Chris Cuomo in January 2017.

This spring he lashed out at the McClatchy reporter who wrote the April article and the one published Thursday.

'Bad reporting, bad information and bad story by same reporter Peter Stone @McClatchyDC. No matter how many times or ways they write it, I have never been to Prague. I was in LA with my son. Proven!' he wrote on Twitter.

Cohen spokesman Lanny Davis told McClatchy on Thursday that the disgraced former Trump insider was sticking to his guns. He insisted that Cohen 'has said one million times he was never in Prague.'

'One million and one times. He’s never been to Prague. … He’s never been to the Czech Republic,' Davis said.

When Democrats take over the House of Representatives in January, they are almost certain to pursue an investigation into Cohen's explanations for his whereabouts when the Prague meeting was reportedly held.

He has claimed that during the entirety of August 2016 he was only in New York and Los Angeles, where he visited with his son.