We shall see what 'they', the collective, actually do. Seems retailers are doing much of what is requested by the 'apolitical victims' of Florida. Seems Florida is responding, via their great Governor Scott, with other specifics as requested.
Flake/Feinstein bill, if there ever is one, is hopefully DOA in Congress, just knowing the two namesakes, regardless of a Presidential endorsement.
The issues requested/demanded are State issues, as to what is sold, to whom, at what age, etc., and likely will remain State issues, where the State elected officials are closest to their constituents, can tailor what is desired/needed.
We shall see, in reality, how State and Local reporting of those who should not be able to purchase firearms, so all the individuals get into the NICS database, will affect how 'complete' and 'effective' the instant background check process may become.
Allowing Teachers and school Staff to become qualified armed protectors, with no regard to their rules or union feelings about it, will be interesting, and the vote count on a clean bill on this topic will inform the electorate.
We shall see.