In a tweet Thursday, the president contended that his stance on America's southern neighbor funding the wall "has never changed." He claimed his replacement of the North American Free Trade Agreement would cause Mexico to pay the barrier "just by the money we save." It is unclear how the new trade deal would fund the wall, which carries a price tag of up to $25 billion.
With just over a week until funding for parts of the government lapses, Democratic leaders aimed to turn the president's statement against him. Two days after an on-camera spat where Trump said he would be "proud" to shut down the government, Senate Minority Leader Chuck Schumer said he would not approve any additional money for the border wall.
"Well, Mr. President, if you say Mexico is going to pay for the wall through NAFTA, which it certainly won't, then I guess we don't have to. Let's fund the government," the New York Democrat said Thursday on the Senate floor.
"Honestly, if the president really believed what he tweeted this morning that his new NAFTA would pay for the wall, he wouldn't be threatening to shut down the government unless American taxpayers fund his wall. You can't have it both ways," Schumer continued.
House Minority Leader Nancy Pelosi also questioned what the president meant by his tweet.
"The money the businesses make? What money is he talking about that's going to go pay for the wall? It just doesn't measure up," she told reporters Thursday. Pelosi added that "the American people are still paying the price" if benefits from the trade deal went to the wall.
Trump's tweet Thursday morning further muddles his messaging on the need for congressional funding for his wall. It could give him less leverage as he pushes Democrats to yield and approve money for the barrier.
His claim that Mexico will pay for the wall followed comments this week that also raised questions about why he needed taxpayer funding. Trump repeatedly contended the barrier was already being constructed — even though Congress has only approved money to build new or replace existing fencing. The president also suggested the military could construct the wall, though the Pentagon said it has no plans yet to do so.
Trump needs nine Senate Democrats to support a funding bill to reach the 60 votes needed to pass one. Schumer has committed to approve $1.6 billion for border fencing and technology, but not the wall as the president has proposed. Trump wants $5 billion in taxpayer money for his wall.
Pelosi, who will likely become House speaker next month when Democrats take control of the chamber, has flatly said her caucus will not approve wall funding. House Republicans, who support Trump's push for wall money, can pass a spending bill without Democrats in the current session of Congress.
Trump has already signed spending measures for five government agencies, including the massive departments of Defense and Health and Human Services. Funding for seven other departments expires after Dec. 21. Disagreements over the Department of Homeland Security and Trump's border wall have tripped up negotiations.
The Democratic leaders have offered Trump two potential solutions. They proposed passing appropriations bills for six agencies along with a yearlong measure to keep DHS funding at current levels. They also floated a yearlong continuing resolution to keep all of the unfunded agencies running.
On Thursday, Schumer said Trump has "not accepted either offer." He called both possible solutions "noncontroversial."
In their heates meeting with Trump on Tuesday, Schumer and Pelosi called the wall inhumane and ineffective. At the start of their huddle, Pelosi appeared to anger the president by talking about a "Trump shutdown."
After a long, tense back and forth, Trump said he will "take the mantle" and "be the one to shut [the government] down" for border security.
Congress still needs to approve the new North American free trade agreement for it to take effect. Many Democrats including Pelosi have showed skepticism about the new accord. The likely next House speaker has said she wants to see better enforcement for environmental and labor protections before she supports the deal.
Pelosi noted Thursday that Trump "doesn't even have the trade agreement" in place.
The White House did not immediately respond to a request to give more details on Trump's Thursday morning tweet, including how much wall money he expects the trade deal to generate.