Mark Meadows says Rosenstein should answer questions about reports that he floated the idea of secretly recording President Donald Trump.
"Deputy Attorney General Rod Rosenstein's letter appointing special counsel Robert Mueller does not give Mueller broad, far-reaching powers in this investigation", Whitaker wrote.
Questions about Rosenstein's future were revived after a New York Times report tha, in May 2017 discussions with Federal Bureau of Investigation and Justice Department officials, he suggested the idea of secretly recording Trump - remarks his defenders insist were merely sarcastic - and of invoking the Constitution to have the Cabinet consider removing Trump from office.
The meeting follows a chaotic period that began Friday with news reports that Rosenstein had past year discussed possibly secretly recording the president and using the U.S. Constitution's 25th Amendment to remove Trump from office.
Trump said Wednesday he might call Rosenstein and ask to delay the meeting so as not to distract from the hearing for Supreme Court nominee Brett Kavanaugh. Rosenstein headed to the White House on Monday morning preparing to be fired and had discussed a possible resignation over the weekend with White House officials.
If Rosenstein were to resign or be fired, oversight of Special Counsel Robert Mueller's Russian Federation investigation would be passed to Solicitor General Noel Francisco, according to the Justice Department. And while many of Trump's allies have urged caution, fearing a trap, moments ago Axios reported that Rosenstein has made a decision to preempt that step by verbally resigning to Chief of Staff John Kelly in anticipation of being fired by President Trump, according to a source with direct knowledge. Unless you call obstruction the fact that I fight back, I really fight back. Rosenstein denied the report as "inaccurate and factually incorrect". Matt Whitaker, Attorney General Jeff Sessions's chief of staff, would take over for Rosenstein - except in his supervision of the special counsel probe, which would be led by Solicitor General Noel Francisco.
But it could be sooner: Some officials around Trump believe Rosenstein's reported musings about invoking the 25th Amendment could make it defensible for Trump to part with him, even during the final sprint to Election Day.
On Monday it seemed like Deputy Attorney General Rod Rosenstein was on his way out.