Polls opened in Israel on Tuesday in a vote that could see conservative Prime Minister Benjamin Netanyahu elected to a record fifth term in office. The election will be in many ways a referendum on the 69-year-old leader who has built a reputation as guarantor of the countrys security and economic growth, but whose populism and alleged corruption have left many ready for change. He faces stiff competition from an ex-general who has pledged clean government and social cohesion. Polling stations opened at 7 am (0400 GMT) across the country and close at 10 pm (1900 GMT). But the victor may not be decided immediately. No party has ever won an outright majority in the 120-seat parliament, meaning days or even weeks of coalition negotiations will lie ahead. Dubbed “King Bibi,” Netanyahu has rallied a rightist camp hardened against the Palestinians and played up Israeli foreign policy boons that are the fruit of his ties with the Trump administration. But the 69-year-old Likud party leader’s hope of overtaking Israel’s founding father, David Ben-Gurion, as longest-serving premier in July has been dented by a looming graft indictment. He denies any wrongdoing. He has engaged in populist rhetoric throughout the acrimonious campaign that critics say amounts to the demonization of Arab Israelis and others. True to form, Netanyahu issued a deeply controversial pledge only three days before the election, saying he planned to annex settlements in the occupied West Bank should he win. Critics warn of “Bibi fatigue” and argue that the parliamentary election should bring fresh faces to high office. Stalking Netanyahu in the opinion polls has been Benny Gantz, a former chief of the armed forces and centrist political novice. Buttressed by two other former generals at the top of his Blue and White party, Gantz, 59, has sought to push back against Netanyahu’s self-styled image as unrivaled in national security. “This is a choice between a strong right-wing government under Netanyahu or a weak leftist government under Gantz,” Likud said in a statement. Gantz told Reuters in response: “Netanyahu is not the messiah, nor an irreplaceable legend. The people of Israel long for something else.” He has called Netanyahus annexation pledge an "irresponsible" bid for right-wing votes. As for his position on the issue, Gantz says he favors a "globally backed peace agreement" that sees Israel hold on to the large settlement blocs in the West Bank and maintain security control over the territory. With little policy daylight separating the two candidates on Iran and the Palestinians, or on Israel’s humming economy, much of the voting will by guided by the question of their character. In vitriolic campaigns waged largely over social media rather than in town squares or street corners, they have exchanged escalating allegations of corruption, of fostering bigotry and even of conspiring with Israel’s adversaries. Netanyahu casts himself as the victim of media bias and judicial overreach. Gantz casts himself as a salve for Israel’s religiously and ethnically riven society and its relations with liberal Jews abroad. “This election is about one thing - whether or not Netanyahu should remain in office. It’s the only thing that really defines 12 out of the 13 parties which will be in the next Knesset,” said Anshel Pfeffer, author of the biography “Bibi: The Turbulent Life and Times of Benjamin Netanyahu”. Israel’s president, Reuven Rivlin, will consult with the leaders of every party represented in the Knesset and choose whoever he believes has the best chance of forming a government. Although both Netanyahu and Gantz have publicly ruled out a future alliance in a “national unity” coalition, some analysts predict a rethink - especially if the candidates agree to tackle together a widely expected US plan for Middle East peace. That plan’s sponsor, President Donald Trump, offered an unusually clement observation on the election, telling his Republican Jewish supporters on Saturday: “I think it’s going to be close ... Two good people.”