Robert Mueller said he reviewed documents related to the origins of the Trump-Russia counterintelligence investigation “on occasion” during the course of his special counsel inquiry.

Rep. Elise Stefanik, a Republican from New York, pressed Mueller on this issue and the former special counsel acknowledged that he reviewed at least some of the documents which helped justify the launch of the DOJ and FBI counterintelligence inquiry into any connections between the Kremlin and the Trump campaign in the summer of 2016, but he declined to provide further details about which specific information he examined.