"If we can't at the end of three weeks, all bets are off".
Fifteen percent of Republicans blame their fellow Republicans for the government's standstill, and another 15% of Republicans blame both parties equally.
Overall 56 percent of respondents opposed the idea of building a border wall, while only 39 percent were in favor the idea.
But during a photo op in Texas Thursday, Trump indicated a willingness to make a deal on DACA "simultaneously" with a deal on wall funding. He again sought to blame Democrats, who he said were "everywhere but Washington as people await their pay".
"I don't want to speak for the president, I don't want to lock him in, but I am confident what I just described with a few other things would be a deal acceptable to the White House and a lot of Democrats", Graham said.
But Trump has said that while he is interested in pursuing a broader overhaul of the immigration system, he first wants to hear what the Supreme Court has to say about the group of immigrants known as "Dreamers".
Despite Trump's calls for Democrats to negotiate, Democratic leaders said it was the president who walked out of their last meeting, calling the negotiations a waste of time, according to news reports.
House Speaker Nancy Pelosi, a California Democrat, wants Trump to end the shutdown first.
Officials explored diverting money from a range of accounts, including 13.9 billion dollars given to the Army Corps of Engineers after last year's deadly hurricanes and floods, but that option appeared to lose steam following an outcry. Instead, McConnell last week vowed to stand with Trump in the wall debate, after the president met with all Senate Republicans and pleaded for party unity behind his wall quest. We can end this easily - We need a Steel Barrier or Wall. However, two-thirds of Republicans would support the president's decision to use those powers.
Trump has tried various angles to pressure Democratic negotiators, but they have not visibly budged from an offer to support some border security spending - the figure of $1.3 billion has been floated - but not the $5.7 billion he wants for a wall.
Later on Saturday, in a telephone interview with Fox News personality Jeanine Pirro, the president said if the Democrats "don't come to their senses" he would declare a national emergency to free up money for his wall without congressional approval. Nine of 15 cabinet-level departments have been closed since December 22, after Trump refused to sign a stopgap spending bill that didn't satisfy his demand for at least $5 billion to fund a wall along the southwest border. "We will be out for a long time unless the Democrats come back from their "vacations" and get back to work". Today, 70 per cent of Republicans say they strongly support the wall, an increase of 12 points since January 2018.
Asked why he had not yet declared a national emergency, Mr Trump said he was giving Congress a chance to "act responsibly". "As a candidate, this is what he talked about, and if there's any mandate he can claim from his election, it was better border security and keeping this nation safe".
"I'm in the White House, waiting".
Radha Muthiah, head of Capital Area Food Bank, said dozens of volunteers were working to pack bags of food for affected staff.