Oliver Weiken/European Pressphoto Agency
TEL AVIV — They pitched tents along Rothschild Boulevard and took to the streets in unprecedented numbers, hundreds of thousands demonstrating against the rising costs of gas, apartments, even cottage cheese.
Back on the genteel boulevard on Wednesday, many of those middle-class protesters from 2011 said they had taken their grievances to the ballot box the day before, helping to catapult Yair Lapid, a suave, handsome journalist-turned-populist-politician, into Israel’s newest power broker.
“He spoke out the strongest about how everything in this country is upside down,” said Elad Shoshan, 28, who works with computers and rents an apartment on a cheaper street off the boulevard.
Echoing his candidate’s mantra, Roni Klein, 52, an accountant, said, “My wife and I work, and still it is very hard for us to finish the month.”
Mr. Lapid’s new, centrist Yesh Atid party shocked the political establishment by winning 19 of Parliament’s 120 seats, becoming Israel’s second-largest faction and a crucial partner for Prime Minister Benjamin Netanyahu, whose relatively poor showing left him scrambling to form a stable coalition.
While Mr. Netanyahu remains all but assured of serving a third term — Mr. Lapid said Wednesday that he would not unite with Arab lawmakers to stop him — Yesh Atid’s ascendance promises to shift the government’s focus to pocketbook concerns despite the pressing foreign policy issues Israel faces.
Mr. Lapid’s campaign hardly challenged Mr. Netanyahu’s policies on the Iranian nuclear threat, the tumult in the Arab world or the Israeli-Palestinian conflict. This was the first election in memory in which such existential security issues were not emphasized, as a growing majority of Israelis see them as too tough to tackle. Even Mr. Netanyahu barely spoke about Iran, his raison d’ĂȘtre.
Instead, voters and analysts alike said Mr. Lapid had captured the hearts of Israel’s silent majority with his personal charm and a positive, inclusive message that harnessed the everyday frustrations that fueled the huge social justice protests in 2011.
One pollster found that about 40 percent of Mr. Lapid’s supporters defined themselves as right-leaning, and in Israel’s coalition system, many saw his success as a tactical move by voters not to oust Mr. Netanyahu but to nudge him to broaden the agenda.
On Wednesday, the prime minister embraced Mr. Lapid’s platform, promising a government “as broad as possible” that would bring change on three fronts: affordable housing, government reform and forcing ultra-Orthodox Jews to “share the burden” of military service and taxes.
Some saw the results as a victory for secular Jews at a time of conflict with the ultra-Orthodox over resources and religious pluralism. Mr. Lapid’s stronghold was here in coastal Tel Aviv and its bourgeois suburbs, where he won about 1 in 4 votes cast, and Modiin, a fast-growing bedroom community halfway between here and Jerusalem.
Tamar Hermann, a political scientist and vice president of Israel’s Open University, called Mr. Lapid “the epitome of the Israeli dream” and described his voters as “the mainstream of the mainstream.”
“This is the kind of voting you can take your kids to and teach them a lesson in civic fulfillment without taking any risks,” Professor Hermann said. “They are complaining, but this is a kind of the zeitgeist, not real agony, not real suffering, not real dissatisfaction with the basic cornerstone of the system. It’s just polishing here and there.”
The election results were widely seen as a rebuke to the status quo, but not necessarily a call for change in approach to contentious questions like what to do about the Palestinians. While Mr. Lapid has called for a return to negotiations, he shares Mr. Netanyahu’s skepticism about the lack of a partner, saying this week, “I don’t think the Arabs want peace.” He opposes division of Jerusalem and made his foreign policy speech in Ariel, a sprawling Jewish settlement 12 miles into the West Bank that the Palestinians see as problematic for the viability of their state.
“The majority of Israelis came to the conclusion that there will be no new Middle East,” Mr. Lapid said over cappuccino here last month. “What we want is not a happy marriage, but a decent divorce.”
Instead, the change voters were seeking was more about the nature of politics itself.