The declaration, signed Friday, allows the state to pursue funding from FEMA to respond to the pandemic.
Candidates depending on other means of voter outreach as face-to-face contact is limited.
The Senate voted 49-46 Monday to invoke cloture on the legislation, short of the three-fifths majority needed to end debate.
The 47-47 vote Sunday succeeded negotiations between Republican and Democratic congressional leaders throughout the weekend.
The Coronavirus Aid, Relief and Economic Security Act was unveiled Thursday.
Senators voted 90-8 on the bill; Sens. Joe Manchin, D-W.Va., and Shelley Moore Capito, R-W.Va., were among the majority.
"I don't want the state of West Virginia or anyone in our state getting a false sense of any type of security that we're immune. We are not," U.S. Sen. Joe Manchin, D-W.Va., said.
U.S. Reps. David McKinley and Carol Miller supported the measure, while Rep. Alex Mooney was one of 40 Republicans who opposed the legislation.
House Resolution 6020 stems from a Major League Baseball proposal that would eliminate 42 teams, including three in West Virginia.
Senators voted earlier this week to move forward with the American Energy Innovation Act.
Eighteen Republican states —including West Virginia — back the legal challenge that could overturn the health care law.
Major League Baseball officials want to replace its deal with the National Association of Professional Baseball Leagues at the end of the year.
U.S. Sen. Joe Manchin, D-W.Va., held a town hall Friday at the University of Charleston.
Commissioners of West Virginia's largest county announced its opposition to the two-bill proposal.
Democratic members of the U.S. Senate Finance Committee pressed Secretary Alex Azar about the legal challenge.
U.S. Sen. Joe Manchin, D-W.Va., is defending himself as President Donald Trump continues his criticism of the senator.
President Donald Trump, continuing his victory lap following an acquittal in the impeachment trial, attacked U.S. Sen. Joe Manchin, D-W.Va., for voting to convict the president on two articles of impeachment.
The discussion, scheduled for Feb. 21, comes after justices refused to take up the case before summer.
The U.S. Senate's impeachment trial concluded Wednesday with the acquittal of President Donald Trump.
U.S. Sen. Joe Manchin, D-W.Va., announced his decision ahead of the Senate's vote that will conclude the impeachment trial.