orange city for the northwest iowa republican rally. the event begins at 7 p-m at the bultman center. deborah: and as the race for the white house continues. hillary clinton brought out a pair of heavy hitters-- her husband and pop star katy perry before she and her main rival, bernie sanders, spoke at a very influential dinner in des moines. abcs david wright is there with the very latest " nats- hillary and katy on stage hillary clinton brought out the big guns? including a pop star dressed like a superhero? nats- firework and a former president now campaigning to be the first-ever first husband. sot - bill clinton i've never been the warm up act for katy perry before. this was bill clinton's debut on the campaign trail for his wife? sot- bill clinton thank you for showing up and supporting her! katy perry's debut, standing up for the clinton campaign? sot- katy perry "i stand and i march with hillary! i believe in her