Trump threatens to 'get involved' in Justice Department dispute

President TrumpDonald John TrumpNASA exec leading moon mission quits weeks after appointment The Hill's Morning Report — After contentious week, Trump heads for Japan Frustration boils over with Senate's 'legislative graveyard' MORE on Wednesday threatened to “get involved” in a roiling dispute between conservative House Republicans and the top Justice Department official overseeing the Russia investigation.
“A Rigged System — They don’t want to turn over Documents to Congress. What are they afraid of? Why so much redacting? Why such unequal ‘justice?’ At some point I will have no choice but to use the powers granted to the Presidency and get involved!” Trump tweeted.
The document makes a series of charges against Rosenstein, including that he broke federal law by refusing to comply with a congressional subpoena for records related to FBI surveillance during the 2016 presidential race and has slow-walked materials to lawmakers investigating possible misconduct at the department.
Republicans have accused the FBI of improperly surveilling Trump associates during the election, including campaign foreign policy adviser Carter Page. Federal officials have said the surveillance warrant was properly approved by the Foreign Intelligence Surveillance Court.
Rosenstein fired back at the latest threats during a Tuesday speech, joking that Republicans in Congress “can't even resist leaking their own drafts.”
"There have been people who have been making threats privately and publicly against me for quite some time, and I think they should understand by now the Department of Justice is not going to be extorted," Rosenstein said.
Critics say GOP scrutiny of Rosenstein is an effort to stymie the special counsel investigation into Russia’s election interference in 2016, which is looking into whether the Trump campaign cooperated with Moscow and whether the president has obstructed justice. 
Rosenstein, the No. 2 official at the Justice Department, is overseeing the probe because Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsAmash: Some of Trump's actions 'were inherently corrupt' 'Persuadable' voters are key to the 2020 election — and the non-screaming news industry Jeffrey Rosen officially sworn in as deputy attorney general MORE recused himself. Democrats and former law enforcement officials call the scrutiny of Rosenstein a thinly veiled attempt to lay the groundwork to fire him.
Trump has waged a months-long war of words against both Sessions and Rosenstein, repeatedly calling the Russia investigation a "witch hunt."
The president has repeatedly downplayed the chances he would fire Rosenstein, Sessions or special counsel Robert MuellerRobert (Bob) Swan MuellerGraham: Mueller investigation a 'political rectal exam' House progressive: Pelosi 'has it right' on impeachment Democrats talk subpoena for Mueller MORE, but he has also not ruled it out.