The United States House of Representatives will vote on Friday on a $3 trillion Covid-19 aid package and a historic rules change to allow lawmakers to vote remotely during the pandemic.

The legislation, which provides funding for state and local governments, coronavirus testing, and a new round of direct payments to Americans, sets up an immediate clash with the Senate, where Republican leaders have said another round of emergency funding is not yet needed.

The partisan debate: The legislation, which reflects Democratic priorities and was not a product of bipartisan negotiations, would stand as the largest relief package in US history.

House Republican leaders have voiced opposition to both the relief package and the rules change for remote voting. House Democrats’ leaders have expressed confidence that both measures will pass the House on Friday. The relief package is not expected to be taken up by the Senate, however, due to Republican opposition.

What’s in the stimulus package?

Nearly $1 trillion for state and local governments

A $200 billion fund for essential worker hazard pay

$75 billion for Covid-19 testing, tracing and isolation efforts

Direct payments to Americans of up to $6,000 per household

Democrats are also pushing for temporary remote voting: This would authorize temporary implementation of remote voting by proxy in the event of a public health emergency due to the coronavirus. It also allows for remote committee proceedings during the pandemic.

Once enacted, the authorization for remote voting and remote committee work would remain in place for a 45-day period, after which it could be extended if the public health emergency persists.