On Friday, the United States and Mexico struck a deal to avert a tariff war, with Mexico agreeing to rapidly expand an asylum program and deploy security forces to curb illegal immigration from Central America.
Trump alluded to mysterious secret provisions in the deal that he said would have to be approved by the Mexican Congress.
"If for any reason the approval is not forthcoming, Tariffs will be reinstated!" he tweeted.
Trump has pushed back on that criticism, defending the deal and his threat to slap a five percent tax on all Mexican goods Monday to pressure the country to do more to stem the flow of Central American migrants across the US southern border.
That includes a commitment by Mexico to deploy its new National Guard to the country's southern border with Guatemala - something the country already meant to do before Trump's latest threat.More news: Mexico given 45 days to curb migrant flow to US
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On Saturday, Trump said that Mexico had agreed to "immediately begin" buying "large quantities" of agricultural goods from US farmers. "We very much appreciate the government working with us on immigration - these are very important issues and they've made significant commitments". Without the threat, he has insisted, Mexico never would have acted.
Asked by VOA why - if there was such an agreement - Mexico is denying it, Trump replied: "I don't think they'll be denying it very long".
"As the tariffs aren't imposed, he would be calculating, I suppose, there would be a boost to economic growth and that that will increase our imports, including grains", Ebrard said, according to the Wall Street Journal. The joint statement makes no mention of this. And now he appears to be doing just that, hinting that Mexico has secretly agreed to new rules that would mean asylum seekers wouldn't be in the United States while they await a ruling.
The Trump administration announced on Monday that Kenneth Cuccinelli will serve as the new acting director of U.S. Citizenship and Immigration Services, which oversees the nation's legal immigration system. U.S. Border Patrol last week announced it had apprehended more than 132,000 people at the border in May, including a record 84,542 adults and children traveling together, straining federal resources and leaving officials struggling to provide basic housing and health care.
Bloomberg News reported that three officials also said that increasing Mexico's purchases from the US wasn't discussed during the talks in Washington that led up to Friday's agreement.
President Trump and White House officials are slamming Democrats as they continue their refusal to solve the ongoing crisis on the southern border.