Hope this helps -

A good summary

Israeli elections are votes for entire parties, rather than a vote for an individual. A party requires 61 seats (of 120) to secure control. But that's never happened. So after the election, a "coalition-building" phase begins, where the parties jockey for alliances with each-other, to pool their seats in such a way that they build the controlling coalition and get to control who the prime minister is. What happened: In this election, a right-wing party emerged running entirely on ousting Netanyahu, much like our Never-Trumpers in the Republican party who focused so hard on ousting Trump. They pledged not to ally with any leftist or Islamic/Arab parties to build their coalition. If they had not made this pledge, many of their voters would have voted for Netanyahu's party instead. The result of the election is that Netanyahu's coalition, and the Leftist/Rino/Arab/Islamic/LGBT opposition coalition are about dead even, and this right-wing Anti-Netanyahu party gets to be the kingmaker. Whichever coalition they align with, pushes that coalition across the 61 seat threshold and becomes the new Israeli government, and decides the Prime Minister. Well, this Anti-Netanyahu party, who promised not to align with the Leftists/Islamics/Arabs, immediately aligned with the Leftists/Islamics/Arabs, and Israelis are pissed. Netanyahu is calling it election fraud, the Israeli people are pissed and protesting (and are ready to revolt) over it. Israeli media is saying that that's a conspiracy theory, and Twitter/Facebook are running defense for the leftists and silencing the voice of the angry Israeli people. So, you know, similar to what happened here in the US. Fraudulent tactics to unfairly take power that the left doesn't deserve, with the media and social media acting as the left's propaganda arm and silencing the voice of the people.

https://www.thetrumpet.com/24139-the-big-lie-in-israels-election