The proposed arch would be located on Columbia Island, between an entry to Arlington National Cemetery and the Lincoln Memorial, across the Potomac River. What kairos12's whinge leaves out, whether from ignorance or deceit:
* The arch would be located on a traffic circle, currently a lawn, designated for memorial use;
* The Cemetery is large enough that the arch would be out of the direct sight-line from most areas of the Cemetery.
Trump made the proposal public in October 2025. It appears that it got on kairos12's whine-dar screen because site survey work started recently. Depending on efforts to obstruct, the arch might or might not be completed before the end of Trump's term.