A Republican senator on Thursday severely delayed the passage of a $1.9 trillion Covid-19 relief package by forcing the entire 628-page bill to be read out loud.

In protest of the bill, which had been expected to pass after a marathon round of votes overnight Thursday, Sen. Ron Johnson, R-Wisc., objected to waiving the reading of the legislation.

Two Senate clerks — John Merlino and Mary Anne Clarkson — are expected to take shifts reading the bill. The effort, which began at around 3:30 p.m., could last over 15 hours before lawmakers actually begin debating the provisions in the legislation.

Any member can object to waiving the reading of the bill, a procedural move that is typically skipped. Johnson said in a tweet on Thursday because of its large price tag “we should know what’s in the bill.”

Senate Majority Leader Chuck Schumer, D-N.Y., said Johnson’s stunt would “accomplish little more than a few sore throats for the Senate clerks who work very hard day in, day out to help the Senate function.”

The Democratic-controlled Senate voted Thursday afternoon to begin debate on President Joe Biden’s relief package in a party-line vote. The bill does not need any Republican support to pass because Democrats are using a special budget process to bypass the filibuster. However, Republicans are expected to raise objections to the bill anyway.

Before a final vote can be taken, there will be a period of lawmakers introducing unlimited amendments, known as a vote-a-rama.

The House passed a version of the Covid-19 relief bill in February. Once the Senate bill is approved, the House will need to vote on it again before it can be sent to the president.

This content was originally published here.