As Americans come out in huge numbers to challenge the illiberal policies of President Donald J. Trump, they should be mindful of developments in and emanating from another increasingly illiberal democracy: Israel.

In power in Israel for nearly a decade, Prime Minister Benjamin Netanyahu and his political partners have focused their energies on one goal above all others: expanding settlements and securing permanent Israeli control over territory occupied by Israel in 1967. In pursuing this “Greater Israel” agenda, Netanyahu has governed according to a political ethos that has much in common with that of Trump, starting with the belief that political might makes right; that laws, courts, and public institutions exist solely to serve those in power; that the media and activists are the enemy; that hasbara (Hebrew for “propaganda,” often akin to “alt-facts”) trumps facts; and that democratic norms like “rule of law” and “checks-and-balances” are for suckers.

Americans should pay attention to Israel not merely for the many lessons it offers about how illiberalism can take hold in a free society. They should pay attention because the same “Greater Israel” agenda that has eroded Israeli society is today poisoning America’s democracy.