washington white house counsel office send memo instruct president donald trump aid preserve materials could connect suspect russian interference 2016 election relate issue administration official say wednesday official speak condition anonymity confirm associate press report memo ap cite administration officials say memo send tuesday u.s. intelligence agencies conclude russia seek influence presidential election help trump defeat democrat hillary clinton congressional committees investigate russia role hack democratic party computers release information publicly federal investigators look possible contact trump advisers russia senate democrats last week ask white house law enforcement agencies keep materials involve contact trump team russian officials ap say senate intelligence committee make similar request ap say white house aid tell preserve materials russia probe source