Today's Source

Tuesday, September 1, 2026

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Exactly 1 state holds elections today: Massachusetts marks primary day, with contested nominating fights up and down the ballot for U.S. Senate, several U.S. House seats, and the state's General Court. The marquee contest pits an 80-year-old incumbent against a sitting House member in a race framed largely around generational change rather than ideology.

Massachusetts: Markey Defends His Seat Against Moulton

The headline race is the Democratic primary for the Massachusetts Senate seat, where incumbent Ed Markey faces Representative Seth Moulton. Recent polling shows Markey with a substantial edge — a UMass Amherst/YouGov survey had him at 51% to Moulton's unlisted share in a matchup against Republican John Deaton, and an Emerson College poll cited in recent reporting put Markey at 60.4% among likely primary voters. The contest has centered on age, with the 80-year-old Markey emphasizing his legislative record against the 47-year-old Moulton's generational-change pitch, a dynamic that surfaced repeatedly in their final debate.

Money tells a more competitive story than the polling. Moulton has outraised Markey in total receipts, $6.2 million to $5.35 million, though Markey holds a modest cash-on-hand edge, $1.35 million to Moulton's $1.84 million — meaning Moulton actually holds more cash on hand despite the closer receipts gap. Both parties' outside raters call the general election safe or solid for Democrats regardless of which candidate emerges: Cook Political Report and Inside Elections both rate the seat Solid D, while Sabato's Crystal Ball calls it Safe D. That rating makes tonight's real contest the primary itself rather than any fall matchup.

Down-ballot, Massachusetts' U.S. House primaries feature heavy Democratic fundraising in several districts. Daniel Koh and John Beccia have each raised more than $4.5 million, and Representative Katherine Clark reported $4.5 million in receipts with just over $2 million cash on hand. Representative Jake Auchincloss, by contrast, has banked the largest war chest of any Massachusetts House candidate at $7.34 million cash on hand despite lower total receipts of $3.63 million, suggesting a campaign built for a longer fight or a potential statewide future rather than a contested primary tonight. Representative Richard Neal and Representative Lori Trahan round out the list of well-funded incumbents, with Neal holding $3.28 million on hand against $2.46 million raised.

Beyond the federal races, Massachusetts' state legislative primaries carry their own significance: 26 incumbents in the General Court face primary challengers this cycle, the most since at least 2010, with all 160 House seats and all 40 Senate seats on the ballot. Watch tonight for the margin in the Markey-Moulton race as the first signal of whether Democratic primary voters are receptive to generational-change arguments against long-serving incumbents, a theme playing out in Senate primaries in multiple states this cycle. Also watch turnout and results in the crowded, well-funded U.S. House primaries, particularly any district where an incumbent underperforms against a self-funded or heavily backed challenger.

Also on the ballot today: no other states are holding elections.

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Real-time vote counts updated every 5 minutes after polls close. Polls close at 8:00 PM ET.

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Polls

National Generic
Reuters/Ipsos (n=924 RV)
Democrats 43% · Republicans 38%
National Generic
Morning Consult (n=24000 RV)
Democrats 47% · Republicans 42%
National Generic
Ipsos
Democratic 43% · Republican 38%
KY House
Lake Research Partners(D) (n=400 LV)
Zach Dembo 45% · Ralph Alvarado 44%
MI House
Global Strategy Group (D) (n=600 LV)
Christina Hines 45% · Mike Bouchard Jr. 45%
NC House
Tulchin Research (D) (n=600 LV)
Raymond Smith Jr. 41% · Greg Murphy 44%

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Headlines

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What to Watch

The What to Watch section was withheld by a pre-send data check — see pollingsource.com for verified data.

New Polls (2)

Generic 2 polls
Aug 31, 2026 Reuters/Ipsos n=924 RV Democrats 43% Republicans 38% D+5
Aug 30, 2026 Morning Consult n=24,000 RV Democrats 47% Republicans 42% D+5

Added to the Archive (2)

Older polls newly added to the PollingSource database — fieldwork predates the last two weeks. Full results on each race page.

Aug 2026 South Carolina Governor 1 poll added
Aug 2026 North Carolina CD-03 1 poll added

Rating Changes

PollingSource Poll Average: Kentucky House CD-06 N/A → Likely R

PollingSource Poll Average: Pennsylvania Governor N/A → Safe D

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