https://en.m.wikipedia.org/wiki/White_House_Peace_Vigil

Thomas launched the anti-nuclear vigil outside the White House in Lafayette Square, Washington, D.C. on June 3, 1981.

In 2013, the Peace Vigil was disassembled while it was briefly left unattended. It was restored the same day.

2013?

There will always be someone complaining, whether the complaint is legitimate or frivolous.

If you don’t see a protest sign against the leader’s policies, its either because people somehow have found unanimity, or more likely, because the leader have become a dictator (like an actual dictator, not a pseudo-dictator).

(Or its too early / too late in the day, and people are tired.)

Probably many days during Bidens run

Probably very early in the morning.