I just read an article on Politico.com that I thought you should read. This article summarizes the events that lead to many gun control groups being silenced when their voices are expected the most. This is because of an agreement between the President and the gun control groups that allowed them to have access and be involved in the gun control movement, but only if they promised to offer silence and support in exchange.
Read the full article here:
How the White House silenced gun control groups