The Office of the Director of National Intelligence has informed the House and Senate Select Committees on Intelligence that it'll no longer be briefing in-person on election security issues, according to letters obtained by CNN. Instead, ODNI will primarily provide written updates to the congressional panels, a senior administration official said. The abrupt announcement is a change that runs counter to the pledge of transparency and regular briefings on election threats by the intelligence community. It also comes after the top intelligence official on election security issued a statement earlier this month saying China, Russia and Iran are seeking to interfere in the 2020 US election. US officials charged with protecting the 2020 election also said last week that they have "no information or intelligence" foreign countries, including Russia, are attempting to undermine any part of the mail-in voting process, contradicting President Donald Trump, who has repeatedly pushed false claims that foreign adversaries are targeting mail ballots as part of a "rigged" presidential race. Senate Intelligence Vice Chairman Mark Warner called the decision to stop in-person briefings an "unprecedented attempt to politicize an issue - protecting our democracy from foreign intervention - that should be non-partisan. Congress and the American public need to know more information about the election interference threat - not less," the Virginia Democrat said.