The U.S. Senate voted Wednesday to override President Obama’s veto of a bill that would allow families of 9/11 victims to sue Saudi Arabia. The 97-1 vote is the first-ever override of a veto during Obama’s presidency. The Justice Against Sponsors of Terrorism Act is meant to enable the families of victims from 9/11 to sue the country for damages. Saudi Arabia’s government has consistently denied involvement in the terrorist attack, but a U.S. investigation claimed that some Saudi officials may have been connected. Obama has said the bill “does not enhance the safety of Americans from terrorist attacks, and undermines core U.S. interests,” and ultimately vetoed it. The House is expected to vote on the bill later Wednesday afternoon.