Trump’s authorisation for US troops to quell dissent on the streets of southern California against the wishes of Gavin Newsom, the state’s Democratic governor — who called the move “immoral” and “unconstitutional” — has set up a high-stakes political and legal stand-off between the White House and America’s most-populous state.

While others have focused on the tax portions of the "big, beautiful bill," Miller has honed in on border provisions within the legislation.