moscow u.s. charge president donald trump former campaign manager paul manafort washington investigate ukrainian trace ria news agency cite russian foreign minister sergei lavrov say tuesday kiev information 2016 u.s. presidential election lavrov tell news brief ria report federal investigators probe allege russian interference 2016 u.s. election something moscow deny charge manafort money launder monday neither trump campaign mention indictment manafort charge go back decade center manafort work ukraine russia comment manafort charge say u.s. investigate ukrainian link ria