Trump says 'phony and fraudulent' Russia investigation 'should never' happen again

President TrumpDonald John TrumpGOP congressman slams Trump over report that U.S. bombed former anti-ISIS coalition headquarters US to restore 'targeted assistance' to Central American countries after migration deal Trump says lawmakers should censure Schiff MORE said Sunday that the "phony and fraudulent" Russia investigation "should never" be able to happen to another president.

"Everybody is asking how the phony and fraudulent investigation of the No Collusion, No Obstruction Trump Campaign began. We need to know for future generations to understand. This Hoax should never be allowed to happen to another President or Administration again!" Trump said in a tweet.

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Trump long railed against special counsel Robert MuellerRobert (Bob) Swan MuellerFox News legal analyst says Trump call with Ukraine leader could be 'more serious' than what Mueller 'dragged up' Lewandowski says Mueller report was 'very clear' in proving 'there was no obstruction,' despite having 'never' read it Fox's Cavuto roasts Trump over criticism of network MORE's investigation into Russian interference in the 2016 election. While it was ongoing, Trump often referred to the probe as a "hoax" and a "witch hunt."

Last week, Attorney General William BarrWilliam Pelham BarrMatthew Shepard's parents blast Barr's LGBTQ record in anniversary of hate crime law Trump denies knowledge of Barr meeting in Italy, says it would be appropriate Mulvaney helped organize controversial Ukraine meeting MORE said in a letter to lawmakers summarizing Mueller's report that Mueller determined the Trump campaign did not coordinate with Russia ahead of the election. Mueller did not decide whether Trump obstructed justice, but Barr and Deputy Attorney General Rod RosensteinRod RosensteinTrump attacks Sessions: A 'total disaster' and 'an embarrassment to the great state of Alabama' Mueller rejoins DC law firm Lewandowski says Mueller report was 'very clear' in proving 'there was no obstruction,' despite having 'never' read it MORE determined that he did not.

Trump previously said that an investigation similar to the Russia should probe should never happen again to another president. 

"This should never happen to a president again. We can’t allow that to take place," he said last week

Republicans in Congress have called for investigations into the origins of the Russia investigation and argued that the results invalidate the necessity of the probe.