A bipartisan group of senators agreed Wednesday on proposed changes to the Electoral Count Act, the post-Civil War-era law for certifying presidential elections that came under intense scrutiny after the Jan. 6 attack on the Capitol and Donald Trump‘s effort to overturn the 2020 election.

Long in the making, the package introduced by the group led by Sens. Susan Collins of Maine and Joe Manchin of West Virginia is made up of two separate proposals. One would clarify the way states submit electors and the vice president tallies the votes in Congress. The other would bolster security for state and local election officials who have faced violence and harassment.