Former Hartford Mayor Luke Bronin leads the CT-01 Democratic primary market following his narrow victory over 14-term incumbent Rep. John Larson for the party endorsement at the May 11 nominating convention. Bronin secured the nod on the second ballot after delegate shifts, a rare upset that positioned him atop the August 11 primary ballot alongside Larson and state Rep. Jillian Gilchrest. The endorsement provides Bronin with structural advantages in a race focused on generational change and district priorities, while Larson retains backing from long-standing institutional and labor networks. Minor candidates trail due to limited visibility and fundraising. The August primary date leaves room for further shifts in voter sentiment ahead of the vote.