Longmaid and Emily Kennedy of Skadden, Arps, Slate, Meagher & Flom LLP discuss a key case before the U.S. Supreme Court that continues to consider the limits and discretion of authority of federal agencies.

While it was once rare for an administration to change its position in cases before the high court, Trump did so in his first term and has signaled he will do it again.

An administration lawyer said a Tennessee law barring some medical treatments for transgender youths is constitutional and urged the justices to say so.

President Donald Trump's sweeping assertions of executive power during his first weeks back in office appear headed toward U.S. Supreme Court showdowns, but it remains an open question whether or how much the justices might act to check his authority.

The Justice Department's new position was expected because President Trump had made opposition to transgender rights a central campaign theme.