President Trump walks to board Air Force One on Oct. 20 at Joint Base Andrews in Maryland. Anna Moneymaker/Getty Images hide caption

Anna Moneymaker/Getty Images

The top Democrats on the House and Senate intelligence committees say they are operating under the presumption that President Trump and his allies will allege fraud related to this year's midterms in order to justify election interference.

"We start with the premise that the president is going to do that. It would be irresponsible not to, speaking as somebody who was in the chamber on January 6, 2021," said Rep. Jim Himes, D-Conn.…