Dem senator: Trump disclosed more to the Russians than Americans
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Sen. Kamala HarrisKamala Devi HarrisDem lawmaker calls on Nielsen to resign over ‘volume of lies’ about family separations Tucker Carlson: Ruling class cares more about foreigners than their own people The Memo: Child separation crisis risks ‘Katrina moment’ for Trump MORE (D-Calif.) accused President TrumpDonald John TrumpConservatives express concern over House GOP immigration bill Poll: McSally holds 14-point lead in Arizona GOP Senate primary Trump defends Nielsen amid criticism over family separations MORE on Friday of being more open with Russian officials than he has been with the American people.

"The president of the United States disclosed more to Russian officials than the American public. This isn’t normal," Harris wrote on Twitter.

Included in Harris' tweet was a link to a New York Times article reporting that Trump had told Russian Foreign Minister Sergey Lavrov and Ambassador Sergey Kislyak during a meeting last week that firing FBI Director James ComeyJames Brien ComeyGiuliani: FBI asked me about tease of a 'surprise' before election Republicans tear into IG finding on Clinton probe FBI agent Peter Strzok escorted from building amid internal review MORE relieved him of "great pressure," presumably because of the bureau's probe into the Trump campaign's possible ties to Russia.

In that same conversation, Trump referred to Comey as "crazy" and "a real nut job," according to the Times.

Trump has faced a steady flow of controversial revelations over the past 10 days, including that he asked Comey in February to end the FBI's investigation of former National Security Adviser Michael Flynn. 

The Senate and House intelligence committees are also probing possible collusion between the Trump campaign and Moscow. The president has repeatedly denied any sort of coordination between his campaign and Russia or any improper connections with the Kremlin.