President Trump on Friday issued a proclamation to Democrats on Twitter, warning Democratic leaders in Congress that he would not accept any legislative solution to protect Deferred Action for Childhood Arrivals (DACA) program beneficiaries without first getting the funding he needs for his promised wall on the Mexican border.

In the tweet, Trump said that Democrats “fully understand” he will not sign any law granting legal protections to DACA recipients, often called “Dreamers,” without funding for Trump’s signature promise to secure and build a wall along the U.S.’s southern border.

“The Democrats have been told, and fully understand, that there can be no DACA without the desperately needed WALL at the Southern Border and an END to the horrible Chain Migration & ridiculous Lottery System of Immigration etc,” Trump tweeted. “We must protect our Country at all cost!”
 

The Democrats have been told, and fully understand, that there can be no DACA without the desperately needed WALL at the Southern Border and an END to the horrible Chain Migration & ridiculous Lottery System of Immigration etc. We must protect our Country at all cost!

— Donald J. Trump (@realDonaldTrump) December 29, 2017

Trump’s tweet comes after Democrats in Congress faced sharp criticism from immigration activists and progressive groups for not demanding legislative protection for Dreamers in the year-end bill to fund the government. This came they after previously promised to not leave Washington, D.C., for the holidays without a deal.