A caretaker government led by Mr Netanyahu has been in place since December 2018, when the first of three elections was called.
Recent polls suggest Mr Netanyahu’s management of the coronavirus crisis has reinvigorated his popularity and Likud could win 40 seats if yet another election takes place.
The same Channel 12 poll suggested Mr Gantz’s Blue & White, meanwhile, would fall to 19 seats, down from the 33 it won in an election only a month ago.
Blue & White has split over Mr Gantz’s decision to enter unity talks with Mr Netanyahu, something he had promised not to do.