Senate Democrats threatened Thursday to block action on the Department of Homeland Security bill funding until House Republicans act on provisions that would reverse President Barack Obama's key immigration policies, according to the Associated Press.

If no action is made by Feb. 27, the department is likely to lose a portion of its funding for counterterrorism and other activities. Lawmakers in both parties said they want to avoid such a situation.

Since Obama's decision on Immigration reform, the GOP has said it would use DHS funding to reverse the president's decision. The House-passed bill is due on the Senate floor in the next few days.

"They seem to dislike the idea of supporting homeland security. They dislike dreamers more than they dislike ISIS," Sen. Charles Schumer (D-N.Y.) said, referring to "dreamers" as young immigrants brought into the country illegally by their parents.

Schumer said they will continue to block action on the House-passed measure until Republicans drop the immigration provisions.

The House-passed bill provides $39.7 billion to fund DHS for counterterrorism throughout the rest of the budget year. It also focuses on cybersecurity and other priorities.

Yet, the measure does not affect additional money the agency receives from fees.

Provisions in the Republicans bill would stop a 2012 directive that has granted work permits to over 600,000 immigrants who have arrived illegally to the United States under the age of 16.

The measure could increase the federal deficit by $7.5 billion over a decade, according to the Congressional Budget Office.

Obama has threatened to veto the bill.

"If rather than try to solve the broken immigration system they compound the problem, I'll veto it," Obama said in a speech at a retreat for Democratic House lawmaker in Philadelphia, Politico reported.

He told Democrats to stand by their economic policies and that "the record shows that we were right."