The two sides hope to sway voters in a pair of nationally televised speeches set to begin at 9 p.m. ET.
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A Congressional delegation of Democrats touring a Border Patrol facility in New Mexico on Monday warned President Donald Trump against circumventing Congress and diverting already appropriated money toward building a wall on the U.S. -Mexico border.
Counselor to the president Kellyanne Conway cast the speech as an opportunity for the president to speak to the nation, stressing that it will be "in his voice, in his words". Trump returned from a trip to Camp David. "As a result. the refunds will go out as normal", said Russell Vought, acting director of the White House budget office.
The IRS may recall a large number of furloughed employees to process returns - probably without pay - in accordance with its contingency plans.
But critics say the security risks are overblown and the administration is at least partly to blame for the humanitarian situation. The president previously said he would be "proud" to shut down the government over the issue of border security.
Vice President Pence and Secretary of Homeland Security Kirstjen Nielsen are expected to counter that argument Tuesday evening when they meet with House GOP members.
"A wall is an immorality, it's not who we are as a nation.We are not doing a wall", House Speaker Nancy Pelosi told reporters after the passage of the bills in the House.
USA president says he has weighed using emergency powers, but prefers reaching a negotiated agreement with congressional lawmakers.
Donald Trump is not expected to declare a national emergency during his prime-time address on Tuesday, three sources familiar with the matter told CNN, a possibility the President has floated in recent days.
Mr Trump exhorted Democrats in Congress to "come back from vacation" and approve funding for his wall.
Trump's speech on Tuesday night will be followed by his visit Thursday to the southern border.
TSA said the effect was "minimal" and that it screened more than 2.2 million passengers Sunday, a historically busy day due to holiday travel.
Trump is showing no signs of budging on his demand for more than $5 billion for a wall along the U.S. -Mexico border.
Trump stated in a Rose Garden news conference Friday: "This should have been done by all of the presidents that preceded me".
Talks over ending the shutdown have been at an impasse over Trump's demand for the wall.
Trump says there is a security crisis at the U.S. -Mexico border that can be addressed only by spending $5.7 billion on a wall as a way to prevent people from crossing into the U.S. illegally.