UPDATE with Adam Schiff tweet House intelligence committee ranking member Adam Schiff has just called Flynn’s immunity request a “grave step,” and that his committee has a “lot of work” to do “before even considering” Flynn’s offer. Earlier today, Schiff tweeted a response to President Donald Trump description of the Russia investigations a “witch hunt.” Tweeted Schiff: “The question for you, Mr. President, is why you waited so long to act after you learned Flynn (through your VP) had misled the country?”

See the Schiff and Trump tweets below.

Previous Michael Flynn’s request for immunity has been nixed by the Senate Intelligence Committee, NBC News is reporting.

Basing their report on two congressional sources, NBC News says a lawyer for the National Security Adviser was told it is “wildly preliminary” and that immunity is “not on the table” at the moment. NBC’s second source said the Senate committee is “not receptive” to Flynn’s immunity request “at this time.”

The Senate committee is investigating Russian involvement in last year’s presidential election. Separate House and FBI investigations are also ongoing.

Cable news Thursday was all but given over to coverage of Flynn’s immunity request, with everyone speculating on what, exactly, Flynn wanted to tell the committee and what, exactly, he wanted immunity from.

On Thursday, Flynn’s lawyer Robert Kelner said, “No reasonable person, who has the benefit of advice from counsel, would submit to questioning in such a highly politicized, witch hunt environment without assurance against unfair prosecution.”

Earlier today, President Donald Trump tweeted that Flynn “should ask for immunity.

Here are Schiff’s tweets: