The difference between "Grassroots" and "Astroturf".

Gun Rights activists pay their own way. The Everytown "protestors" are on Bloomberg's dole.

Ten days after Michael Bloomberg announced a $50 million investment in gun control and proclaimed the National Rifle Association should be afraid of him, the Bloomberg-backed Everytown for Gun Safety group is taking the fight directly to NRA — picking up a chunk of the tab for hundreds of activists and gun violence survivors to attend the annual NRA convention in Indianapolis.

If that's the best support you can buy, you've already lost.