divers even searching a pond, but turning up nothing. and late today, the family saying they have no idea who could have taken her. >> it could be anyone, even if it's a family member, stranger. but the only thing we're asking is for her to come back home safely. >> reporter: tonight, police are looking for that red van with tinted windows and a sliding door on the passenger side. david? >> whit johnson reporting tonight. thank you, whit. next this evening, president trump in a new feud with california tonight, telling that state it cannot set its own emissions standards, revoking that state's right to set its own limits for cars and trucks. california's governor calling it a political vendetta and he's vowing to fight back tonight. abc's matt gutman from california. >> reporter: tonight, president trump in california, picking what could be a long legal fight with this tweet -- "the trump administration is revoking california's federal waiver on emissions." barring california from setting its own auto emission standards, the president said, is about