Israel's Benny Gantz nominates himself to be parliament speaker
A formal vote electing Gantz is expected later on Thursday.
A staunch ally of Netanyahu's right-wing Likud party, the ultra-Orthodox United Torah Judaism party, has committed to backing Gantz as speaker.
A source from Gantz's centrist Blue and White party, who requested anonymity, told AFP that the party leader's bid to become speaker was part of an effort to form an emergency government with Likud.
Israel has been mired in a crippling political crisis that has seen the country hold three inconclusive elections in less than a year.
Gantz was tasked with forming a government following the last vote on March 2, but there was no guarantee he would succeed, given the deep divisions within the anti-Netanyahu camp.
Amid the coronavirus pandemic that has seen more than 2,600 Israelis infected, there have been widespread calls for an alliance between Netanyahu and Gantz.
Agencies contributed to this report.