If the president was running for re-election, he would likely focus his speech on affordability.

But instead Trump has flagged that he will be speaking about tariffs - a hobbyhorse he has built his political career upon.

On Friday the Supreme Court ruled that his sweeping Liberation Day tariffs were illegal.

Today he will have an opportunity to confront the justices on the one day of the year they are in the same room.

Trump will also tout his achievements regarding immigration.

It's also likely he'll speak about violent crime in cities, securing the border and confronting China.

It's also possible he will take on deeply unpopular topics that he himself is keen on - annexing Greenland, renovations at the White House and a large monument he wants built in Washington.