meanwhile the investigation into russian entire fierce into the presidential election are heating up. the house intelligence committee is threatening to sum the white house for information about recordings president trump suggested he had of his conversations with former fbi director james comey. and on the senate side, investigators are looking at possible obstruction of justice related to comey's firing, as well as potential financial ties between trump associates and russia. at the same time, the white house is confirming that president trump will meet with russian president vladimir putin at the g20 summit in germany next week. it will be their first face-to-face encounter since mr. trump took office. we're covering all of that. much more this hour with our gefrt including the former chair of the hillary clinton presidential campaign john podesta whose e-mails were hacked by russia. our correspondents and special efforts are all standing by. but let's begin with the controversy over president trump's laltsest twitter attack. these go to our senior white