Trump 2nd term live updates: Dan Bongino named as deputy FBI director

At Mar-a-Lago, President Donald Trump said he signed an executive order related to oversight of independent agencies.

As explained by White House staff secretary Will Scharf, the order will establish "important oversight functions in the Office of Management and Budget and its subsidiary office, OIRA, supervising independent agencies and many of their actions."

Scharf said the order also establishes "that only the president or the attorney general can speak for the United States when stating an opinion as to what the law is."

OMB Director Russell Vought is a staunch proponent of the "unitary executive" theory, which contends the president has sole authority of the executive branch. The order comes as Trump faces legal pushback amid his administration's unprecedented purge of the federal workforce and reshaping of what Congress set up as independent agencies.

President Donald Trump signed an executive order directing the Domestic Policy Council to "examine ways to make IVF and other fertility treatments more affordable for more Americans," White House staff secretary Will Scharf said during a press conference with the president Tuesday afternoon.

The president also signed a presidential memorandum to impose "radical transparency requirements on government departments and agencies," Scharf said, touting that this will further uncover "waste, fraud, and abuse" in order to save taxpayer's dollars.

Hampton Dellinger, the head of the Office of Special Counsel challenging his firing without cause by President Donald Trump, asked the Supreme Court to stay out of the case for now citing procedural grounds.

Dellinger asked the justices to allow the litigation to develop further before intervening in the separation-of-powers dispute, which has not been fully briefed by either side or adjudicated on the merits by any lower court.

Trump, by contrast, has asked for swift action by the Court to strike down a TRO blocking Dellinger's removal for 14 days saying it impedes his constitutional authority.

-- ABC News' Devin Dwyer

More than 900 former federal prosecutors, including former special counsel Jack Smith, penned a public letter Tuesday expressing solidarity with career officials who they say have properly stood up to the political demands by the top leadership of the Trump Justice Department.

"As prosecutors, we were rightly prohibited from making criminal charging decisions based on someone's political association, activities or beliefs, or because of our personal feelings about them," the prosecutors wrote in their letter.

-- ABC News' Alexander Mallin