Trump will end health care cost-sharing subsidies

The subsidies have required a monthly payment approved by Trump, which until now have gone forward. The White House has said it would consider each month's payment on an individual basis.

The move has the potential to dramatically increase costs for some Obamacare customers. It's the latest step taken by Trump to dismantle aspects of the signature health law signed by his predecessor.

Earlier Thursday, the President signed an executive order that broadly tasks the administration with developing policies to increase health care competition and choice in order to improve the quality of health care and lower prices. However, it could also destabilize Obamacare by siphoning off younger and healthier Americans from the exchanges.

White House press secretary Sarah Sanders said the decision was "based on guidance from the Justice Department."

"The bailout of insurance companies through these unlawful payments is yet another example of how the previous administration abused taxpayer dollars and skirted the law to prop up a broken system," Sanders said in a statement.