To vote in the Democratic primaries for New York Sate, I had to register in the Democratic party. Why would a political party hold a closed primary?

Voting in elections in the UK does not require you to bring any form of ID to the polling station. Why is this? Could someone vote multiple times by giving different addresses?

Just wondering if Joe Biden could be Hillary Clinton's running mate

Darrell Castle, the 2016 Constitution Party presidential candidate, ran for vice president in 2008 under Chuck Baldwin, who flirted with the 9/11 Truth movement. I'm going to try to make this as broad as possible while still being answerable. Does Castle have a position on whether the US governm...