• After months of debate, lawmakers are poised to pass major changes to the Electoral Count Act.
• The reforms are included in a sweeping government funding bill that is expected to pass this week
• Among the changes would be a clarification that no vice president could unilaterally change a state's results.

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Congress is poised to pass its most sweeping post-January 6 actions later this week, a host of steps that would rule out a future rogue vice president unilaterally casting aside election results, among other reforms.

After months of debate, lawmakers are expected to pass changes to the nearly 135-year-old Electoral Count Act and much more recent provisions governing presidential transitions. The reforms, written by Sen. Susan Collins, a Maine Republican, and Sen. Joe Manchin, a West Virginia Republican, have broad bipartisan support. 

Lawmakers were unable to pass the legislation by itself, leading the bill to be attached to the sweeping $1.7 trillion deal that would fund the federal government for most of next year, a common way to pass legislation unrelated to government funding.