President Trump warns tariffs with Mexico still on the table if Mexico doesn't follow through on immigration demands

President Donald Trump warned on Twitter that tariffs were still on the table if Mexico's government failed to agree to try to stop immigrants from reaching the U.S. border.

Weren't these tariffs just canceled?

"I am pleased to inform you that The United States of America has reached a signed agreement with Mexico," Trump announced Friday evening. He said that in light of this deal "[t]he Tariffs scheduled to be implemented by the U.S. on Monday, against Mexico, are hereby indefinitely suspended. The exact details of this deal have not yet been released. Any deal still has to be approved by Mexico's Congress before it can become law.

Trump had threatened the tariffs on May 30, saying that they would start out at 5 percent and gradually increase "until the Illegal Immigration problem is remedied" and "illegal migrants coming through Mexico, and into our country, STOP."

What happened now?

On Monday, Trump wrote on Twitter that despite promises from the Mexican government, "if for any reason the approval" from the Mexican government "is not forthcoming, Tariffs will be reinstated."

GOP elected officials have called for Trump to stop imposing tariffs

Some of Trump's fellow Republicans have criticized the tariffs, since they would likely affect businesses in border states. Texas Gov. Greg Abbot (R) applauded Trump for "trying to address this emergency" at the border, but said that he opposed the implementation of tariffs "due to the harm it would inflict on the Texas economy."

In late April, Sen. Chuck Grassley (R-Iowa) warned Trump that the trade deal he had struck with Mexico in November 2018 was in danger if he failed to lift tariffs he had put in place on imports of steel and aluminum. He also called the tariffs a "tax on Americans," referring to how the tariffs are paid by American import companies rather than foreign exporters.