[humblegunner]

In 1980 the Israeli Knesset passed a Law designating Jerusalem as the captital of Israel.

That makes it the capitol then. Why is it an argument?
(Assuming, of course, that "Knesset" has the requisite authority.)

Screw the UN, they don't run anything but their mouths.

Why do we care anyway? Is mail not getting delivered correctly or something?

[Tallguy]

It’s a big deal if “Country X” decides not to move its embassy to the capital. That’s the only practical consideration.

As for the UN expressing themselve on this subject... we are in complete agreement.

[Lurking Libertarian]

That makes it the capitol then. Why is it an argument? (Assuming, of course, that "Knesset" has the requisite authority.) Screw the UN, they don't run anything but their mouths.

The original 1947 UN resolution to divide Palestine (then a British-administered UN Mandate territory) into a Jewish and an Arab state provided that Jerusalem would not belong to either country but would be internationally-administered. That never happened (Jordan seized the Old City of Jerusalem and annexed it in 1948; Israel seized the New City and annexed it in 1948; Israel re-took the Old City and annexed it in 1967), but every US administration (literally every one: Truman, Eisenhower, Kennedy, Johnson, Nixon, Ford, Carter, Reagan... you get the picture) has taken the official position that Jersulaem is owned by no one until a final treaty between the Israelis and Arabs resolves its status.