Boxer joined the House challenge to Ohio's 20 electoral votes.
A small group of Democrats agreed Thursday to force House and Senate debates on Election Day problems in Ohio before letting Congress certify President Bush's win over Sen. John Kerry in November.
Sen. Barbara Boxer, D-Calif., signed a challenge mounted by House Democrats to Ohio's 20 electoral votes, which put Bush over the top. By law, a challenge signed by members of the House and Senate requires both chambers to meet separately for up to two hours to consider it. Lawmakers are allowed to speak for no more than five minutes each.