Check your voter registration...

FIRST:
Check registration deadlines in any state here:

https://www.usvotefoundation.org/state-election-dates-and-deadlines

THEN:
Check your registration (and let others know they can check theirs) at any of these sites:

https://iwillvote.com/
(Be sure to choose YOUR state)

https://www.vote.org/

https://vote.gov/

Check your voter registration often, especially if you live in a state where republicans have any access to voter rolls or can effect voter registrations in ANY way.

See ya in November!