Retired Israeli army chief Benny Gantz is launching his political campaign on Tuesday, seeking to position himself as the first serious challenger to Prime Minister Benjamin Netanyahu’s decade-long rule. Gantz’s emergence in the polls as Netanyahu’s top rival highlights how security rules supreme in the minds of most Israeli voters, AP said. The ex-general has been riding a wave of popularity, even while saying little and presenting a vague ideological platform. Polls predict a Netanyahu reelection, with his right-wing Likud party taking around 30 of parliament’s 120 seats, and Gantz’s Resilience party coming a distant second with around 15, Reuters reports. That would line Gantz up to join a future Netanyahu-led coalition government - unless the ex-general tries to mobilize like-minded factions against the incumbent, now in his fourth term.