

The lie was that only Palestinians have lived there for thousands of years.
Not according to the state of Israel
Correction: the government of Israel, with a ruling party (Likud, led by Bibi) which has 32/120 seats in the Knesset. That’s less than 27% of the seats. This is what you get with proportional representation and coalition government.
Wouldn’t that only be true if the third party was running a brand new slate of candidates? If the Republicans and Democrats are in secret talks to form a third party, it’s likely that a whole bunch of incumbents plan to break off from their parties to join the third party. They don’t need to win an election to do that, they could do it right now.
Of course their old parties would try to defeat them in the next election, but if these incumbents have been getting elected for many years then they’d still be hard to unseat even in a different party. Especially so if these members’ electorates are already disgruntled with the existing parties.