It all started when Representative John Lewis (above, center), a veteran of the Civil Rights movement in the '60s, took to the House floor and said:
"Now is the time for us to find a way to dramatize it, to make it real. We have to occupy the floor of the House until there is action."
Then the House Dems just sat down on the floor. And they're not moving.
The protest — which is not being televised because the House is not currently in session — is being reported by the Reps themselves, on Twitter: