Government coronavirus response: Trump prepared to use the 'full power' of government

President Donald Trump addressed the nation from the Oval Office announcing a broad ban on travel from Europe to the U.S. for the next 30 days and a series of stimulus measures amid continued financial decline and as the number of Americans infected with the novel coronavirus continues to grow exponentially.

Earlier Wednesday, several of the nation's top public health experts were grilled on Capitol Hill about how bad the coronavirus crisis might get and whether the Trump administration is up to the job of dealing with it.

Wednesday afternoon, the two sergeant at arms for the House and Senate were preparing to announce that they will stop public tours of the U.S. Capitol due to the coronavirus, several sources told ABC News. The decision is expected to be announced later Wednesday.

The tough questions came as Trump met with bankers at the White House as his administration tried to cut a deal with congressional Democrats on economic relief measures that could include everything from paid sick leave to a payroll tax cut.

Tune into ABC News Live at noon EDT every weekday for the latest news, context and analysis on the novel coronavirus, with the full ABC News team where we will try to answer your questions about the virus.

Here were Wednesday's most significant developments:

• State Department tells Americans to reconsider all travel abroad
• Trump addressed the nation from the Oval Office at 9 p.m. EDT Wednesday
• The coronavirus task force met at 5:30 p.m.
• Fauci warns Congress: 'It's going to get worse'
• Administration and congressional Democrats negotiating economic relief measures

Here is how developments in Washington unfolded.