1.   Housebound voters should register early for a postal vote.

2.   Allowing voters to register on election day, instead of cutting off registration weeks earlier, also could boost voter turnout, Campbell said.

3.   Cross-party voting is allowed in the South Carolina primary but voters cannot register on the day of the election.

4.   Fewer younger voters everywhere are registering as Democrats.

5.   In New Hampshire, where voters register by party or official nonaffiliation, a third of the voters label themselves independent.

6.   In Virginia, voters do not register by party.

7.   Ironically, registration surveys show that more new voters are registering as Republicans.

8.   One avenue, which the court upheld, is the practice of allowing voters to register for a specific party ballot on the day of the election.

9.   Today, more voters register as independents than Democrats and Republicans combined in the Bay State.

10.   Until recently, registration rules in most states required potential voters to register or to update their registration each election cycle.