President Donald Trump indicated he does not back the current form of a relief bill House Speaker Nancy Pelosi vowed to pass Friday to combat the global coronavirus pandemic.

As the number of confirmed cases of coronavirus disease, or COVID-19, rise in the U.S. and the outbreak upends daily life and the U.S. economy, the California Democrat called for a "coordinated, science-based and whole of government response" to the crisis. She urged Congress to pass a "response that puts families first to stimulate the economy."

"Today, we are passing a bill that does just that," she said during remarks in front of a row of American flags designed to stress the gravity of the moment.

But the fate of her Democratic-backed plan was in limbo Friday afternoon as the president called it inadequate, reducing its chances for GOP support in Congress. Trump said, "we just don't think they're giving enough," contending Democrats are "not doing what's right for the country." He did not explicitly say what he wanted negotiators to change.

Pelosi carried out intense negotiations with Treasury Secretary Steven Mnuchin on a potential agreement to provide economic relief to Americans affected by the crisis. They had their 12th call of the day just before 5 p.m. ET, after Trump's Rose Garden news conference wrapped up, according to Pelosi spokesman Drew Hammill.

On Thursday night, Pelosi said Democrats and the administration were close to a final deal. On Friday afternoon, a senior administration official told CNBC that "several pieces of the text, which go beyond provisions kept limited to address Covid-19, do not yet have sign off from us."