The official position of the UN and, anyway until Obama left the White House, of the US government is that the territories seized in 1967 are not part of Israel and are illegally occupied by the Israelis.
The Western Wall is within those territories.
The Western Wall Is Occupied Territory
US-Israel Tensions Rise After Trump Official Says Western Wall Located in West Bank
But Netanyahu and his religious party allies insist all of Jerusalem, including the Western Wall, are part of Israel.
And heretofore the Trumpists have shown sympathy for Bibi and his aspirations, even questioning the US commitment to a two-state solution.