The Democratic former governor of New Mexico on Sunday ripped President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE over his comments on immigration.

Bill Richardson said in an interview on MSNBC that Trump’s treatment of the Deferred Action for Childhood Arrivals (DACA) program has been “cruel.”

“It’s very cruel to dangle the DACA issue the way the president has, when perhaps he had no intention of resuming it,” Richardson said.

Earlier Sunday, Trump tweeted a call for congressional Republicans to change Senate laws in order to pass tougher immigration legislation, and said that they should not make a deal to protect DACA recipients.

Border Patrol Agents are not allowed to properly do their job at the Border because of ridiculous liberal (Democrat) laws like Catch & Release. Getting more dangerous. “Caravans” coming. Republicans must go to Nuclear Option to pass tough laws NOW. NO MORE DACA DEAL! — Donald J. Trump (@realDonaldTrump) April 1, 2018

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Trump also tweeted Sunday that Mexico is doing “very little, if not NOTHING” to address immigration, and that it is "laughing" at the U.S.'s immigration laws. Richardson said that “the facts don’t support” much of what Trump claimed in his tweets.

"Mexico is doing very little, if not NOTHING, at stopping people from flowing into Mexico through their Southern Border, and then into the U.S.," Trump tweeted. "They laugh at our dumb immigration laws. They must stop the big drug and people flows, or I will stop their cash cow, NAFTA [North American Free Trade Agreement]. NEED WALL!"

He also claimed that people are trying to enter the U.S. to "take advantage of DACA," which offers protection to certain immigrants who were brought to the U.S. illegally as children.

Mexico is doing very little, if not NOTHING, at stopping people from flowing into Mexico through their Southern Border, and then into the U.S. They laugh at our dumb immigration laws. They must stop the big drug and people flows, or I will stop their cash cow, NAFTA. NEED WALL! — Donald J. Trump (@realDonaldTrump) April 1, 2018

These big flows of people are all trying to take advantage of DACA. They want in on the act! — Donald J. Trump (@realDonaldTrump) April 1, 2018

Richardson also hit Trump for making statements that appear to have come out of the blue.

“You don’t know whether the president’s negotiating with himself, he’s reacting to a television show, he’s in a bad mood, he doesn’t have his security advisers … around him to calm him down,” Richardson said. “You just don’t know, as usual, what’s going to be the endgame.”