A federal judge on Friday struck down an executive order signed by President Donald Trump earlier this year targeting the law firm Jenner & Block, ruling the effort ran afoul of the Constitution’s First Amendment.

A U.S. judge on Friday overturned President Donald Trump's executive order targeting Jenner & Block, dealing another setback to his administration's crackdown on prominent law firms that represented Trump's political adversaries or employed lawyers who investigated him in the past.

The order relies on guidance from the US Supreme Court, which found Boston violated the First Amendment when it denied a Christian flag.

President Trump on Thursday claimed his recent “most favored nation” executive order could cause U.S. drug prices to “drop like a rock” in just a matter of weeks, saying the savings will be “incalculable.

President Trump's executive order aims to slash prescription drug prices by up to 80% by targeting pharmacy benefit managers, but experts say implementation details remain unclear.