Friday is the last day to register to vote in the November 7th General Election. It’s also the last people can change party affiliations ahead of the September 2018 Primaries. Ontario County Republican Election Commissioner Mike Northrup says the law is meant to stop electoral mischief. In many states people flip parties for a day and they mess with the opposing party’s primary out come.
People wanting to switch parties would also use the standard voter registration form to do so