The 2024 US election is under threat from a growing number of foreign actors using ever more sophisticated methods to conduct interference, the country’s top intelligence official warned Wednesday.

Director of National Intelligence Avril Haines singled out Russia, China and Iran as the worst offenders — but added the federal government had never been better prepared to protect American democracy from foreign influence.

“(There) are an increasing number of foreign actors, including non-state entities, who are looking to engage in election influence activities,” she told US senators at a hearing on threats to the 2024 US election.

State actors are increasingly using private companies to conduct election influence operations, she said,…