President Joe Biden and US election rivals Kamala Harris and Donald Trump marked the first anniversary on Oct. 7 of Hamas's attacks on Israel, as the Middle Eastern conflict threatens to weigh on November's presidential vote.

Smoke rises over Dahiyeh in Beirut's southern suburbs after overnight Israeli air strikes, amid ongoing hostilities between Hezbollah and Israeli forces, as seen from Sin El Fil, Lebanon, October 7, 2024. REUTERS/Amr Abdallah Dalsh
Credit: Reuters