Activist and celebrity chef José Andrés joined protesters outside the U.S. Supreme Court on Wednesday, when President Donald Trump became the first sitting president on record to attend oral arguments on a case at the High Court.

Andrés, when speaking to Fox News Digital, slammed Trump for "changing the game's rules," rules the chef said "have been already done," the same year as America's 250th anniversary since the Declaration of Independence was signed. He suggested that what Trump is doing – attempting to ensure that children born to parents who are in the United States illegally or temporarily do not become American citizens – is not what America "should be working towards."

The chef's comments mirrored remarks by other protesters alongside him outside the Supreme Court, complaining that Trump's efforts to tighten the screws around birthright citizenship violates the Constitution.…