"House Intel Chair Raises Alarm Over 'Serious National Security Threat' Linked to Russia, Urges Declassification"

House Intelligence Committee Chairman Mike Turner warns of a "serious national security threat" without providing details, pre-empting a planned White House briefing, and requesting President Biden to declassify information. White House national security adviser Jake Sullivan expresses surprise at Turner's statement, confirming a Thursday briefing related to the threat. The threat is described as a "potential foreign threat" by a Democratic source, and Senate leaders are not expected to attend the briefing due to a recess.