President Biden on Monday warned about a rising number of coronavirus cases even amid progress on vaccinating Americans, calling on governors and other officials to reinstate mask mandates. “This is deadly serious. ... If we let our guard down now we could see the virus getting worse not better,” the president said at the White House.

He announced an acceleration in the availability of coronavirus vaccines, as well as an increase in the number of local pharmacies providing vaccinations and additional mass vaccination sites. He said 90 percent of adults will be eligible for vaccination by April 19 and that 90 percent of them will have access to a vaccination site within five miles of their home.

Biden is also preparing to push his next major legislative package, with a trip planned Wednesday to Pittsburgh to tout a plan to improve the country’s roads, bridges and water systems.

Here’s what to know:

  • The White House announced an ambitious plan to expand wind farms along the East Coast and jump-start the country’s nascent offshore wind industry.
  • The Biden administration announced it is extending a federal policy that prohibits landlords from evicting tenants who are behind on their rent.
  • Senate Majority Leader Charles E. Schumer (D-N.Y.) is exploring additional use of the budget reconciliation process to pass parts of Biden’s costly “Build Back Better” agenda.