President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE’s reelection campaign is fundraising off the one-year anniversary of Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's appointment as special counsel to lead the probe into Russian meddling in the 2016 election.

Trump's campaign sent out a fundraising email Thursday urging supporters to make a donation to his campaign, with a message attributed to the president insisting that there was "no collusion" between his team and Russia in 2016.

“Congratulations America, we are now into the second year of the greatest Witch Hunt in American History…,” the email reads before adding in boldface type, “and there is still No Collusion and No Obstruction.”

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The email then shifts blame to Democrats, asserting that "the only Collusion was that done by Democrats who were unable to win an election despite them spending far more money," a reiteration of Trump's remarks from a tweet sent earlier Thursday.

Congratulations America, we are now into the second year of the greatest Witch Hunt in American History...and there is still No Collusion and No Obstruction. The only Collusion was that done by Democrats who were unable to win an Election despite the spending of far more money! — Donald J. Trump (@realDonaldTrump) May 17, 2018

In the email, Trump tells his supporters to join the “fight” against Mueller’s investigation by renewing their membership with his reelection campaign.

"On this anniversary of the greatest Witch Hunt in American history, I am asking you to renew your Sustaining Membership for the 2018 year to show the witch hunters that *NOT A SINGLE PATRIOT* backed down from our fight," the email reads.

Trump’s email arrives a day after the president slammed the “disgusting, illegal and unwarranted Witch Hunt” on Twitter while asserting that his administration has been “the most successful first 17 month Administration in U.S. history.”

Despite the disgusting, illegal and unwarranted Witch Hunt, we have had the most successful first 17 month Administration in U.S. history - by far! Sorry to the Fake News Media and “Haters,” but that’s the way it is! — Donald J. Trump (@realDonaldTrump) May 17, 2018

Thursday marked one year since Deputy Attorney General Rod Rosenstein Rod RosensteinDOJ kept investigators from completing probe of Trump ties to Russia: report Five takeaways from final Senate Intel Russia report FBI officials hid copies of Russia probe documents fearing Trump interference: book MORE appointed Mueller as special counsel to oversee the ongoing federal probe into possible collusion between Trump's presidential campaign and Russia in 2016.

In the past year, Mueller's team has charged 19 people and three Russian entities as part of its sprawling investigation, while securing five guilty pleas, including several from former Trump campaign associates.

But Trump's legal team has blasted the continuing probe, arguing it has made no headway in proving any alleged collusion between Trump's campaign and Russia in 2016 and calling for Mueller to wrap up the investigation.

Partisan divisions over the federal Russia probe also deepened this week ahead of the anniversary of Mueller's appointment.