Michigan Voters Decide the Most Expensive Democratic Senate Primary in US History
Finn's Take· TL;DR- $54 million in AIPAC spending and outside money made this the most expensive Democratic Senate primary ever, with Israel-Gaza policy becoming the central campaign issue.
- Progressive Abdul El-Sayed leads establishment Rep. Haley Stevens in polls by double digits, but younger voters strongly favor El-Sayed while older voters prefer Stevens.
- Holding Michigan is critical for Democrats to regain Senate majority; general election against Republican Mike Rogers will test whether progressive primary momentum translates to November victory.
A Historic Primary Fueled by a Flood of Outside Money
Michigan's U.S. Senate race is expected to be among the most competitive of the 2026 midterms, and the outcome of the August 4 Democratic primary between Representative Haley Stevens and progressive candidate Abdul El-Sayed could prove critical in shaping the contours of the November election. Michigan voters headed to the polls today in what has become a defining moment — not just for the state, but for the Democratic Party's identity heading into the fall.
Federal Election Commission records show that AIPAC and other political action committees have spent more than $54 million to help Stevens. A dark-money group called the Center for Democratic Priorities has also spent about $6.5 million on ads supporting Stevens — and AIPAC has become the main topic of conversation in the Democratic primary, which analysts say could affect the party's approach to Israel for years to come.
Two Very Different Visions for the Democratic Party
El-Sayed, a progressive epidemiologist and former public health official, is running against Stevens, a four-term Congress member, to replace retiring Democratic Senator Gary Peters. The two candidates represent a stark ideological fork in the road. Stevens has leaned on her establishment credentials, including her work on the Obama-era auto industry bailout that helped save Detroit's economy. Stevens has garnered support from establishment Democrats like Governor Gretchen Whitmer and Peters, while El-Sayed is a favorite of progressives like U.S. Senator Bernie Sanders and Representative Alexandria Ocasio-Cortez.
El-Sayed, who if elected would make history as the nation's first Muslim senator, is an epidemiologist who unsuccessfully ran for governor as an insurgent candidate in 2018. He has made support for Medicare for All a major component of his campaign. The Israel-Gaza conflict has loomed over everything. El-Sayed wrote on X that "AIPAC is perfectly fine with either Congresswoman Stevens or Mike Rogers," referring to the Republican Senate nominee, adding: "If either of them win, Israel wins."
The Polls Favor El-Sayed — But November Looms Large
A Zenith Research poll found that El-Sayed led Stevens on an initial ballot, 53 percent to 34 percent. An Emerson College poll produced similar results — it showed El-Sayed with a 16-point lead, 57 percent to 41 percent, surveying 700 likely voters July 26–27, 2026. There is a clear age divide: voters under 50 break for El-Sayed by 42 percentage points, while voters over 60 flip to Stevens by a 14-point margin.
The electability question is where things get complicated. The rare open Senate seat is a top Republican target and is a must-hold for Democrats as they aim to win back the Senate majority from the GOP, which currently controls the chamber with a slim 53–47 margin. Rogers said he thinks he'd be "in good shape" in the general election if El-Sayed won the Democratic primary, according to an audio call obtained by CNN, calling El-Sayed "so radical" — though public polls aren't as conclusive. More than 1 million voters in Michigan cast a ballot before the August 4 primary, mostly by mail.
What This Race Means Beyond Michigan
The contest is one of the most closely watched 2026 Senate races as Democrats seek to flip the chamber. For Democrats to win a majority, holding their Michigan seat is practically a requirement. The outcome will send a clear signal about whether grassroots progressive energy can overcome a historically funded establishment campaign — and whether opposition to U.S. policy on Israel has become a genuine electoral force within the Democratic base.
Whoever emerges from today's primary faces a steep climb. Mike Rogers pledged to fully support whichever Democrat wins the primary — and he is running for the Senate for a second straight cycle after losing in 2024 to now-Senator Elissa Slotkin by a razor-thin margin. That near-miss makes Rogers a battle-tested opponent. The Democratic nominee will need to unite a fractured party quickly, and tonight's result will reveal just how deep those fractures run.