Washington (CNN) President Donald Trump insisted Wednesday morning that the mood in the White House was "very calm" despite an avalanche of reports that he's reeling over developments related to special counsel Robert Mueller's Russia investigation.

But Trump also called out embattled Deputy Attorney General Rod Rosenstein, who, according to multiple people familiar with the discussions, is under consideration by the President to be fired in a potential effort to put greater limits on Mueller.

"So much Fake News about what is going on in the White House," Trump first tweeted, adding that the state of the West Wing is "very calm and calculated."

The President continued: "I (we) are doing things that nobody thought possible, despite the never ending and corrupt Russia Investigation, which takes tremendous time and focus. No Collusion or Obstruction (other than I fight back), so now they do the Unthinkable, and RAID a lawyers office for information! BAD!"

So much Fake News about what is going on in the White House. Very calm and calculated with a big focus on open and fair trade with China, the coming North Korea meeting and, of course, the vicious gas attack in Syria. Feels great to have Bolton & Larry K on board. I (we) are — Donald J. Trump (@realDonaldTrump) April 11, 2018

....doing things that nobody thought possible, despite the never ending and corrupt Russia Investigation, which takes tremendous time and focus. No Collusion or Obstruction (other than I fight back), so now they do the Unthinkable, and RAID a lawyers office for information! BAD! — Donald J. Trump (@realDonaldTrump) April 11, 2018

Trump later conflated the Mueller probe with rising US tensions with Russia.

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