They could be decisive to the vote, but they have very low levels of voter turnout.
Tuesday effectively will mark the end of the presidential primary season.
California arguably is ideal ground for Hillary Clinton to call out Bernie Sanders for his gun-voting record.
Donald Trump likely will win the majority of the state's 44 delegates, but won't definitively secure the nomination yet.
The residents, who allege the rules are confusing, hope to extend the deadline to the state's June 7 primary.
Brooklyn, and more broadly New York City, is personal for both Democratic contenders.
From abortion to NATO, Trump hit on hot-button issues two days before the Wisconsin primary.
The Democratic front-runner on Monday urged Americans to consider the Supreme Court when voting.
Clinton is poised to win big over the U.S. senator from Vermont in South Carolina's primary contest on Saturday.
The Republican front-runner Donald Trump has proposed such a plan.
Telling a woman how she should vote because she is a woman is as insulting as telling her she shouldn't vote because she is a woman.
In a Wednesday email, the candidate accused the media of spreading "false" and "misleading" information.