43% of New Hampshire Voters are registered as undeclared. These voters may choose one party's ballot, registering them a member of that party. However, voters can fill out a card at the polling place to return to undeclared status after the vote is cast.
If a super-majority of New Hampshire Voters oppose the grotesque amount of money in politics, they can register their opposition by voting for one of the few 2020 Democratic Presidential candidates that if elected are more likely that the others to do something about it.
The DNC has opposed open primaries/caucuses every chance they gets and by doing so can maintain the status-quo of big money politics which has caused more and more voters each year to abandon the two political parties.
2020 is an opportunity for, especially Independent Voters, to push-back on both closed primaries and big money politics.