Ann Coulter on Monday said Democrats should point out that 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 "hasn’t kept any of his promises" in the wake of special counsel 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 report that found no evidence of collusion between the Trump campaign and Russia in the 2016 election.

Coulter, a conservative commentator who has feuded with Trump over his failure so far to build a wall on the Mexican border, urged Democrats to tell voters Trump had failed to meet his promises.

"Hey liberals! Hot tip for you: You want to go after Trump? Point out he hasn’t kept any of his promises," Coulter wrote on Twitter.

Hey liberals! Hot tip for you: You want to go after Trump? Point out he hasn’t kept any of his promises. — Ann Coulter (@AnnCoulter) March 24, 2019

Democrats have opposed Trump's efforts to build a wall on the border, even passing a measure overturning his effort to declare an emergency to get the wall built. Trump vetoed that measure passed by the House and Senate.

Attorney General William Barr sent a letter to Congress Sunday detailing the top-level findings of Mueller's report.

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His letter said the special counsel's investigation did not uncover evidence that the Trump campaign conspired or coordinated with the Russian government to interfere in the 2016 election — something which Trump and supporters have jumped on as clearing the president.

While Mueller's team did not reach a conclusion on whether Trump obstructed justice while in the presidency, Barr said he and 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 decided not to pursue an obstruction charge after reviewing the special counsel's findings.

Coulter, once a prominent and vocal supporter of Trump, has repeatedly criticized the president in recent months over the negotiations on the wall.

She criticized him for “folding” on the proposed border wall with Mexico by agreeing to a short-term spending deal to end the 35-day government shutdown without guaranteeing funding for the wall.

Coulter also called Trump's State of the Union address earlier this year the “lamest, sappiest, most intentionally tear-jerking SOTU ever."