Representative Katie Porter, a Democrat from California, during a House Oversight Committee hearing on Capitol Hill in March 2020.

Representative Katie Porter, a Democrat from California, holds up a board outlining the cost of coronavirus testing during a House Oversight Committee hearing on Capitol Hill in Washington, D.C., U.S., on Thursday, March 12, 2020. President Donald Trump said he doesn’t support House Democrats’ package of measures to respond to the coronavirus in its current form, even as his Treasury secretary is negotiating changes with Speaker Nancy Pelosi. Photographer: Sarah Silbiger/Bloomberg via Getty Images