Why Were Democrat Congresspersons Asleep at the Wheel on Bump Stocks Maybe Because Obama Ok’d Them?

Bump stocks were deemed legal by the Obama administration’s ATF back in 2010, so why didn’t the Democrats in Congress vigorously object at the time, and why are so many Republican congresspersons saying that they didn’t even know what a bump stock is, really? So it’s insincerity from the left and raw ignorance on the right, more reason to wonder what’s in the water up there?