If you are registered to vote and already affiliated with any party (Democratic, Republican, Working Families, Independent, etc.) Per State law, the LAST DAY to CHANNGE TO A DIFFERENT PARTY AFFILIATION so as to vote in the Presidential Primary is January 2, 2024.
If you are not registered to vote, or are registered, but not affiliated with any party, the last day to register and/or join a major party online or by mail is March 15, 2024.
If you want to change your registration online visit: http://voterregistration.ct.gov