[piytar]

Not the reason. The reason is more a matter of reducing confusion — of correct identification from afar.

I respectfully disagree. President Trump is one of the most recognizable people on the planet even from afar. Tie color is irrelevant to such.

This is about politics.

[Cincinnatus.45-70]

I hope it is only about politics.

But it also helps a poor marksman or one with only an instantaneous view to pick the correct target.