Story highlights The payments in question are used to reduce health care costs for low-income people

Discussions about tying the funding to the coming showdown were already underway

(CNN) Democrats plan to tie money promised to health insurers to offset Obamacare costs to the coming showdown over keeping the government running, a Democratic source said, following a threat from President Donald Trump Wednesday.

The promise from Democrats comes a day after Trump told the Wall Street Journal he may stop "cost-sharing reduction" payments to health insurers as a tactic to bring Democrats to the negotiating table. The payments are used to reduce health care costs under Obamacare for low-income people.

"I don't want people to get hurt," Trump said in the interview. "What I think should happen — and will happen — is the Democrats will start calling me and negotiating."

A Democratic source told CNN Thursday that discussions about tying the funding to the coming showdown were already underway, but the President "threw gas on the fire" with his threat.

Democratic leaders immediately slammed Trump's comments Wednesday, but Thursday's news, which was first reported by The Washington Post , is the first indication they are ready to fight back.

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