Congress is closing out the week without a resolution in sight over the issue holding up an agreement - Trump's demand for money to build a border wall with Mexico and Democrats' refusal to give him what he wants.
Roberts said Senate Minority Leader Chuck Schumer, of NY, and other Democrats need to come up with an "appropriate number" and language for border security funding that Trump will sign. They aren't expected in Washington again until the middle of next week.
Trump canceled his Christmas trip to Florida and remained in the White House, saying on Christmas Eve that he was "waiting for the Democrats to come back and make a deal".
The actor is not against intensifying border security, he simply believes there are better ways to use funding for it.
"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", the president tweeted.
Over the weekend, Mick Mulvaney, the acting White House chief of staff, said the White House had made a counter-offer to Democrats on border security.
The president then reiterated his threat to close the border if wall funding isn't secured, and added that his administration would also cut off foreign aid to Honduras, Guatemala and El Salvador for taking money from the USA while not preventing its citizens from migrating to America in caravans. Only 25 percent said they supported Trump shutting down the government over the matter. It also is beginning to pinch citizens who count on varied public services.
At that point, he could face a politically hard choice - back down on his full wall-funding demand or veto the bill and single-handedly extend the partial shutdown. "We're going to behave like adults and do our job".
Drew Hammill, spokesman for House Democratic leader Nancy Pelosi said Democrats will not fund Trump's "immoral, ineffective and expensive wall".
If he chose the latter, putting his personal stamp on the shutdown, Congress might then move to override his veto, but that would take a two-thirds vote in both the Senate and the House, a challenging hurdle for lawmakers.
"Call it anything", he added, "barrier, fence, I won't say the "w" word".
"We assume that this caravan ... will pick up more people in El Salvador and Guatemala. We will be cutting off all aid to these 3 countries - taking advantage of USA for years!"