Family members of 9/11 victims have urged Vice President Kamala Harris and former President Donald Trump to oppose any Middle East peace deal with Saudi Arabia. They insist that the U.S. government must hold the kingdom accountable for its alleged involvement in the 9/11 attacks. The families cite new video footage of a Saudi government agent "casing" the U.S. Capitol in 1999, as evidence of Saudi involvement. In 2016, a congressional inquiry was declassified, revealing evidence that some 9/11 hijackers had contacts with individuals possibly linked to the Saudi government. In 2021, President Biden issued an executive order to release more 9/11-related documents.