To Maga Republicans, it signals that "America First" has limits. One may challenge trade agreements, immigration policy, global institutions or even party leadership. But challenging Washington's alignment with Israel remains extraordinarily dangerous.

To libertarian conservatives, the answer is equally stark: fiscal conservatism and scepticism towards foreign intervention remain acceptable only until they intersect with Israel.

And to the broader Republican Party, the lesson could not be clearer: party discipline increasingly requires adherence to Trumpism and to a foreign policy consensus in which Israeli priorities remain deeply embedded within the permanent foundations of American power.