Mass. Sen. William Brownsberger wins recount against Daniel Lander

Mass. Sen. William Brownsberger survived a primary challenge against Daniel Lander, a former Wu administration aide, election officials found Thursday.

Why it matters: The narrow race, which triggered a recount, was seen as a proxy battle between Senate leadership and Mayor Michelle Wu after their clash over a property tax relief bill.

Catch up quick: Brownsberger, who has represented the Suffolk and Middlesex Counties Senate district since 2012, hadn't faced a primary challenger in over a decade.

A loss for Brownsberger, Senate president pro tempore, would have shaken up Senate President Karen Spilka's already shifting leadership team, between Sen. Pat Jehlen planning to retire and Majority Whip Mike Rush losing his primary.

The latest: Brownsberger beat Lander by 35 votes, elections officials said after a two-day recount, per the State House News Service.

What's next: Brownsberger faces no Republican challenger and will likely coast to re-election in November.

Spilka congratulated all the primary winners and said, "the results speak for themselves. Now it's time to put the primary campaign politics behind us."