While mostly symbolic, the move to revoke security clearances for over a dozen former officials has been seen as a warning to President Trump's adversaries.

President Donald Trump revoked security clearances for Joe Biden, Kamala Harris and a string of top Democrats and political foes in a presidential memo late Friday. “I have determined that it is no longer in the national interest for the following individuals to access classified information,

The move comes after Mr. Trump had already announced last month that he was revoking former President Joe Biden's security clearance.