Already has.
I was gonna say it happened in about 2001, but I’d have been wrong.
Waco, Ruby Ridge, Elian Gonzalez.
Even before that, there were rogue agencies and agents operating inside the USA with full knowledge and approval of Congress and the Executive branch... as I personally experienced in the 1980s. but it was Bill Clinton that started making it publicly overt.
And George W. Bush that made it law.
Don’t forget the JFK assignation, the Great Depression, World wars....