In a piece published last week in Commentary, Jonathan Tobin confidently asserts that:

"While no American government has ever recognized Israeli sovereignty over any part of the ancient capital, it is equally true never before had an American president made an issue of the building of homes in the existing Jewish neighborhoods begun in the immediate aftermath of the reunification of the city in 1967. Though settlement building in the West Bank has been a constant source of tension, and projects such as the one at Har Homa outside these Jewish sections of the city (although it was on vacant, Jewish-owned land) were disputed by Washington, housing in places like Ramat Sharon had never been a bone of contention."(emphasis added)

You'd think before anyone would make such a categorical assertion in print (or even online), he'd first bother to check the facts.  Because the facts are easy to check.
 

The United States does not recognize the sovereignty of any party in any part of Jerusalem (East or West).   This is not a new policy imposed by the Obama Administration, as some seem to believe or want others to believe.  It is a policy that dates back to pre-1948, and has been followed by every U.S. Administration since, regardless of the President or party in the White House.  Across this entire period, the policy has applied equally to Israeli, Jordanian, and Palestinian claims in the city.  What follows are representative examples across this entire period illustrating the consistency of this policy.