politics. the latest is benny gantz, against the guile of benjamin netanyahu. can gantz pull it off? oren leibermann reports from jerusalem. >> reporter: his victory speech in april came too early. but come tuesday, benny gantz has a chance to do what he couldn't do then, defeat benjamin netanyahu. his supporters chant, look who is coming, the next prime minister. gantz is vowing to pull out all of the stops. >> translator: we're continuing to work to approach the people. that's what needed until the end and beyond. >> reporter: those that support netanyahu realizes gantz is, on paper, a formidable challenger. >> translator: i'm realistic. i come from bibi's camp. and i support bibi.