JERUSALEM (AP) — Israelis vote Tuesday in an unprecedented repeat election that will decide whether longtime Prime Minister Benjamin Netanyahu stays in power despite a looming indictment on corruption charges.

Netanyahu, the longest serving leader in Israeli history, is seeking a fourth consecutive term in office, and fifth overall. But he faces a stiff challenge from retired military chief Benny Gantz, whose centrist Blue and White party is running even with Netanyahu’s Likud. Both parties could struggle to form a majority coalition with smaller allies, though, forcing them into a potential unity government.

Netanyahu has tried to portray himself as a seasoned statesman who is uniquely qualified to lead the country through challenging times. Gantz has tried to paint Netanyahu as divisive and scandal-plagued, offering himself as a calming influence and an honest alternative.

Tuesday’s vote marks their second showdown of the year after drawing even in the previous election in April.

Netanyahu appeared poised to remain in office at the time, with his traditional allies of nationalist and ultra-religious Jewish parties controlling a parliamentary majority.