An Appropriations subcommittee sought to call the health official to testify next week.
House Democratsโ insistence on state and local funding will set up a clash with Senate Republicans.
Mnuchin says any taxpayer-backed loan over $2 million will be subject to review before it can be forgiven.
Democrats are moving rapidly to unveil a massive new rescue bill, but opposition awaits in the Senate.
The president said the postal agency should quadruple its package delivery prices.
The House is expected to approve the measure Thursday.
โI think we are getting close to a deal,โ President Trump said at his daily coronavirus briefing. He said he had just spoken with Treasury Secretary Steven Mnuchin, whoโs been leading negotiations for the White House. โWe have some very good negotiations going on right now, and I think you could have a nice answer tomorrow."
Lawmakers and health-care providers are frustrated about the way the $100 billion allocated for hospitals in the $2 trillion coronavirus stimulus bill is being distributed.
Democratic lawmakers say President Trump does not have authority to unilaterally withhold spending from the World Health Organization, with House Speaker Nancy Pelosi calling his move illegal.
The International Monetary Fund predicted a 3 percent contraction in the global economy this year, the worst economic downturn since the Great Depression of the 1930s.
The impasse came amid signs that the economy is continuing to deteriorate.
Democratsโ asks come in response to Mnuchin request for $250 billion more for small-business relief.
