He didn't have too. It is still supporting gun control. Read it again and a few other articles on it. Government still reserves the right to say who can and who can't own weapons, type, mag size, ect. Nothing was won today as this is just the DEMs position of about 15-20 years ago nothing more.
"The right to keep and bare arms shall not be infringed upon". Why is this so hard for even Republicans to understand?