[bcrosby95]

AFAIK Supreme Court has said that funding carrots have to be related to what you're trying to get them to do. Speed limits obviously translate to transit funding, I'm not sure you're going to find funding related to voting that is significant enough to convince states that don't have vote-by-mail.

Oh, and it can't be too significant, because the Supreme Court shut down the Medicaid expansion requirement (expand Medicaid or lose all related funding) in the ACA because the funding was too much of states' budgets.

It's a fine line to walk.