WASHINGTON (AP) — The Senate has rejected President Barack Obama's veto of legislation that would allow the families of Sept. 11 victims to sue Saudi Arabia for the kingdom's alleged backing of the attackers.

Senators voted 97-1 Wednesday to override Obama's decision to scuttle the bill. The override vote came even as the president and top military officials warned the measure could put U.S. troops and interests at risk.

A House vote is expected later Wednesday. If the House also overrides, the bill becomes law.

During his nearly two terms in office, Obama has never had a veto overridden by Congress.

Families of the victims disputed Obama's reasons for vetoing the bill and pushed lawmakers to overturn his decision.