Naftali Bennett has long held ambitions to be Israel's prime minister, but his expected nomination is remarkable given his party, Yamina, won only a handful of seats in the last general election.
Despite his faction coming joint fifth with seven seats, Mr Bennett was propelled into the position of kingmaker, with his support vital if either of the two rival blocs competing for power were to be able to form a viable governing coalition.
He was offered the premiership as a shared role by both the incumbent, Benjamin Netanyahu, and opposition leader Yair Lapid. In the end, the right-wing Mr Bennett sided with the centrist Mr Lapid, despite their wide ideological differences.
Naftali Bennett, 49, was once considered a protégé of Mr Netanyahu, whom he served as chief of staff from 2006 to 2008, until the pair fell out. He left Mr Netanyahu's Likud party and joined the right-wing national religious Jewish Home party, entering parliament after leading it to success in the 2013 election.
He went on to serve as a minister in every coalition government until 2019, when his newly formed New Right alliance failed to win any seats in that year's election. Just 11 months later, Mr Bennett reversed the loss, returning to parliament as head of Yamina (Hebrew for "rightwards").
Often described as an ultra-nationalist, (he has described himself as more right-wing than Mr Netanyahu), Naftali Bennett is outspoken in his advocacy of Israel as the Jewish nation state and Jewish historical and religious claims to the West Bank, East Jerusalem and the Syrian Golan Heights - territory occupied by Israel since the 1967 Middle East war.
He has long championed the right of Jewish settlement in the West Bank (he was once the head of the Yesha Council, the political representative group for Jewish settlers), although he has said Israel has no claims on Gaza (which Israel pulled troops and settlers out of in 2005). More than 600,000 Jews live in about 140 settlements in the West Bank and East Jerusalem, considered illegal by almost the entire international community, though Israel disputes this.
The fate of the settlements is one of the most contentious issues between Israel and the Palestinians, who seek their removal and the establishment of an independent state in the West Bank and Gaza, with East Jerusalem as its capital. Interfering in, let alone halting, settlement activity is anathema to Mr Bennett, who considered the pro-settlement Mr Netanyahu as untrustworthy on the issue.
Fluent in English and media-savvy, Mr Bennett frequently appears on foreign TV networks, defending Israel's actions. Blunt talking and combative, in a domestic television debate he once admonished an Israeli Arab member of parliament for saying Jews had no right to settle in the West Bank, telling him: "When you were still swinging from trees, we had a Jewish state here."
Mr Bennett rejects the notion of the creation of a Palestinian state alongside Israel - the so-called two-state solution to the Israeli-Palestinian conflict (an issue he has likened to "shrapnel in the buttocks") advocated by much of the international community, including US President Joe Biden.
"As long as I have any power and control, I won't hand over one centimetre of land of the Land of Israel. Period," he said in an interview in February 2021. Rather, Mr Bennett advocates strengthening Israel's hold on the West Bank - territory he refers to by its Biblical Hebrew name of Judea and Samaria - by annexing most of it.
Mr Bennett has also taken a hard line towards dealing with the threat from Palestinian militants (for whom he has said he supports the death penalty. This has never been applied in Israel apart from in the case of Adolf Eichmann, an architect of the Holocaust who was convicted in Jerusalem in 1961 and hanged the following year).
He objected to a truce with Gaza's Hamas rulers which ended a flare-up of fighting in 2018, and accused the group of effectively murdering dozens of its own civilians killed in Israeli air strikes carried out in response to rocket-fire from Gaza in renewed hostilities in May 2021.
The theme of Jewish pride and national self-confidence is one which Mr Bennett, who wears the kippah head-covering of religious Jews, has made his signature. In a 2014 party campaign, he parodied the New York Times and Israel's left-wing Haaretz newspaper for criticising Israeli actions, appearing in a social media video disguised as a hipster Israeli repeatedly saying "sorry", before revealing himself and declaring: "Starting today, we stop apologising."
Mr Bennett's political ascent follows earlier distinctions in the military and in business. He served in two branches of the Israeli special forces during his army service, before setting up and selling hi-tech companies, making him a multi-millionaire in the process.
Speaking about his wealth in an interview in 2014, he said: "I don't eat 17 steaks and I don't have a private plane or yacht. It simply bought me freedom to do what I want."
