LEXINGTON, Neb. — Across the street from a Tyson beef plant set to close at the end of January, Nebraska U.S. Senate candidate Dan Osborn accused the company of breaking a century-old law aimed at preventing anti-competitive behavior by meatpackers.

Republicans in Congress want to give states more authority to remove ineligible voters — including noncitizens and people who have moved or died — from voter rolls, seeking to reinforce the Trump administration’s own push to scrub the lists.