If you live in Texas, make sure to register to vote! The deadline is coming up in a few days on the 7th. Note that for Texas you must register either in person or by mail, you cannot register online unlike most states
Find information on how to register to vote anywhere https://vote.gov/
That’s no longer true, the 14th amendment effectively made the constitution sovereign over all the states, period. That’s how incorporation works, otherwise states could have handgun bans again like in the 19th century.