This information is by Jeanine Santucci in USA Today:

As the year wears on and we approach the 2020 presidential general election, voter registration deadlines for state primary elections and caucuses are passing every day. In order to vote, you need to be registered – unless you’re a North Dakotan, where there’s no such thing as registration. 

We’ve compiled all of the registration deadlines for 2020 primaries for every state and Washington, D.C., as a voter resource. Here they are:

Read the full article here.