After a number of highly-contested partisan votes in Congress, opposition parties have been known to show their strong disagreement by holding press conferences in front of the Capitol building with nearly their entire caucus present. This gesture was a tradition for a while (in my recent memory). How did it start? Has it ended? What were the reasons for it?
My purely speculative opinion is that it started because congressmen have legal immunity for anything they say on the floor of their chamber. So making comments which were clearly outside of the building was a way to indicate that they were not taking advantage of the immunity and that they stood by those words even if they were legally challenged.
This doesn’t happen a lot nowadays though. So this could be because this understanding (of what speech is legally protected even if it is an outright lie) is not so widely spread.
But it’s just as possible that this could be a result of technical issues of how interviews and press conferences are conducted.
Does anyone know what the history of this tradition is?