Sen. Dick Durbin called on President Trump Sunday to keep his word and treat those protected under the Deferred Action for Childhood Arrivals program with "heart," ahead of Trump's Tuesday announcement about the future of the scheme.

"Republicans in nine states have threatened to sue @POTUS unless he rescinds #DACA and stops renewing/issuing any DACA permits," the Illinois Democrat wrote on Twitter Sunday. "If #DACA is ended in this way, it will not show heart for the #Dreamers. It will be a humanitarian and economic disaster."

In a speech in February, Trump said he would deal with DACA "with heart."

DACA provides temporary legal status to young illegal immigrants who register, pay a fee, and pass background checks. About 800,000 young people are currently afforded such protection, Durbin tweeted.

Durbin asked whether the U.S. would be a stronger country if DACA recipients like Jesus Contreras, a Houston paramedic and Dreamer who "spent 6 days rescuing people" after Hurricane Harvey, were deported.

"This is a crisis manufactured by Republicans and it can only be solved by Republicans," Durbin added. "@POTUS has the power to keep #DACA in place. @SpeakerRyan and @SenateMajLdr [McConnell] have the power to bring up the bipartisan #DREAMact I introduced with @LindseyGrahamSC."

Durbin and South Carolina Republican Lindsey Graham filed "Dream Act" legislation in July to offer permanent legal status to illegal immigrants who arrived in the U.S. before they turned 18.