WASHINGTON — President Donald Trump is threatening to close the U.S. border with Mexico if Democrats in Congress don't agree to fund construction of a border wall.

Trump tweeted Friday morning that "We will be forced to close the Southern Border entirely," unless a funding deal is reached with "the Obstructionist Democrats."

Trump's demand for money to build the border wall and Democrats' refusal to give him what he wants have caused a partial government shutdown that is nearly a week old. Congress adjourned for the week without a resolution in sight.

We will be forced to close the Southern Border entirely if the Obstructionist Democrats do not give us the money to finish the Wall & also change the ridiculous immigration laws that our Country is saddled with. Hard to believe there was a Congress & President who would approve! — Donald J. Trump (@realDonaldTrump) December 28, 2018

The shutdown is idling hundreds of thousands of federal workers and beginning to pinch citizens who count on some public services, and it's looking increasingly like it will be left up to a divided Congress to deal with.

For example, the government says it won't issue new federal flood insurance policies or renew expiring ones until the budget for them is restored.

Congress is closing out the week without a resolution in sight over the issue.

The Associated Press

Information compiled by Breaking News producer Loyd Brumfield