A Democratic primary took place on Tuesday, resulting in a win for Sen. Ed Markey. He secured his party's nomination by defeating challenger Rep. Seth Moulton. The bid by Moulton was centered on age and generational change.

The primary was a generational showdown, with Markey ultimately emerging victorious. This win allows him to move forward with his party's nomination.

Further details about the primary and its outcome are available from the source, providing more information about the election and its results.