WASHINGTON (AP) — President Donald Trump says he will address the nation Tuesday night about what he says is a “crisis” at the U.S.-Mexico border.

Trump’s prime-time address will come amid a partial government shutdown caused by his insistence that Congress give him more than $5 billion to build a wall on the border.

Congressional Democrats are refusing to pay for a wall.

Trump also plans a trip Thursday to the southern border to highlight his demands for the wall.

Trump tweets that he will address the nation at 9 p.m. Eastern time Tuesday.

Vice President Mike Pence says the White House is looking into the legality of declaring a national emergency to circumvent Congress and begin construction on President Donald Trump’s long-promised Southern border wall.

He says Trump continues to weigh the idea but has yet to make a decision.