It IS about WH. Strategically, one has a pretty good vantage point to attack/shoot at WH from that entire area (Smithsonian. FBI, etc). So, you lock down any and all points that allow direct view of the WH, and triple check everyone who comes in or goes out of the area. Have no idea if they check IDs and cars, but I would at this point.

Look at the FBI building right there, how many snakes are in there?

When McStain and Xiden staged the junta coup in Kiev who do you think brought sniper rifles in his car trunk? A well known politico (Parubiy?) was even stupid enough to boast and show a brand new NATO rifle (M16) to some "fans" on his way in. On video. Guess what caliber bullets were found in dead bodies, and trees, on the day of the coup? Not the AK-47, but NATO standard, beyond questionable in Kiev.

I am sure Trump knows to keep away from any and all politicos right now. And shielded from FBI building, as well as any other in the area that is taller than WH.

Think strategically.