Ms. Peters, a former county clerk, received a nine-year sentence after being convicted of tampering with voting machines. An appeals court overturned the sentence but did not immediately free her from prison.

© David Zalubowski/Associated Press

“Look at that gas pump,” a new ad from a liberal group says. It is targeting Representative Derrick Van Orden of Wisconsin over his support for the war effort.

© Kenny Holston/The New York Times

Election experts and Democratic officials called the order legally invalid, and Arizona and Oregon pledged to immediately challenge it in court.

© Doug Mills/The New York Times