Cyber and influence threats did not materialize as the biggest day of the presidential primary calendar drew to a close, according to a U.S. official.

“We did not observe any issues out of the ordinary today. We continue with the assessment that there is no known, credible or specific threat to today's election day operations,” a senior Cybersecurity and Infrastructure Security Agency (CISA) official told reporters during a second Super Tuesday media briefing.

“We do believe that the American people should have confidence in the process as it's been executed today, and continues to be administered,” the official added.

“We do ask that please give election officials the time and space to conduct the necessary processes, canvassing and certification.”

Voters in more than a dozen states are holding presidential nominating contests of some kind today, the largest test of U.S. election infrastructure before the general election in November.

National security officials have warned for months that the 2024 presidential race could see a variety of foreign adversaries launch cyberattacks or influence operations, possibly with the help of generative artificial intelligence, on the U.S. before Election Day.