The most important thing most of you can do at this point, if you wish to support Ned Lamont, is to contact everyone you know in Connecticut and make sure they know about the primary. Even if your friends and family are moderately plugged into the political world it's quite possible that an August 8th primary just isn't really on their radar. You don't even necessarily have to try to sell them on Lamont, just please let them know that the primary is happening.
You can do it your own way, or you can use this handy tool from the Lamont campaign which will help you follow up.
It's gonna come down to turnout at this point.