Chris Murphy encountered a challenge as he walked down Grand Avenue: After investing his time locking in endorsements and building a field operation in New Haven, can he convince voters to actually come to the polls on Tuesday?

His hopes of becoming a U.S. senator may rest on the answer.

Murphy hit Fair Haven as he entered the final stretch before Tuesday’s Democratic primary, when he faces Susan Bysiewicz. Both are seeking the party nomination to replace retiring U.S. Sen. Joe Lieberman.

The winner will most probably face Republican candidate Linda McMahon in the general election.

Murphy has taken to heart a new adage in Connecticut politics: Democrats can’t win unless they win New Haven, big.

Click here to continue reading Melissa’s report from the center of Democratic politics.