More than half of House Democrats voted on July 15 to take away $3.3 billion in U.S. military and humanitarian aid from Israel. The vote showed a split in the party that strategists say is the biggest disagreement Democrats face before the 2026 midterm elections.

The proposal came from Kentucky Republican Rep. Thomas Massie. A total of 103 Democrats voted for it, while 98 Democrats voted to keep the aid and 10 voted present, meaning they did not take a side. Massie was the only Republican who voted for his own proposal. The vote tally was recorded by the Clerk of the House and reported by NPR on July 31.

House Democratic Whip Katherine Clark, the second-ranking Democrat in the House, said in a July 15 statement that the United States should not hand out military aid to any country that does not follow U.S. law, interests and values. Rep. Greg Casar, who leads the Congressional Progressive Caucus, went further. He said U.S. tax dollars should not pay for Israel's military while Americans are struggling to pay their own bills. Casar said the Israeli government has killed more than 70,000 people in Gaza and helped push the United States into a war with Iran.

Not all Democrats see the split as something deeper. Halie Soifer, who leads the Jewish Democratic Council of America, said the only real disagreement in the party on Israel is about how military aid is spent. Democratic strategist Jake Dilemani called it "probably the highest profile and sharpest debate" inside the party. NPR reported both comments on July 31.

The split goes beyond Congress. Rahm Emanuel, who NPR says could run for president as a Democrat in 2028, gave a speech at Tel Aviv University in early July criticizing Israel's leaders. "The pursuit of a so-called greater Israel is as self-destructive and fanatical as the chant from the river to the sea," Emanuel said. NPR first reported the speech around July 9.

The debate is happening while the U.S. and Israel are working more closely on military operations. Israeli Prime Minister Benjamin Netanyahu visited Washington the week of July 27 for the funeral of late South Carolina Republican Sen. Lindsey Graham. During that visit, Netanyahu met with President Trump to strengthen U.S. support for Israel's military goals in Iran and Lebanon, according to NPR.

Outside groups are trying to use the party's divisions to their advantage. Officials with the Democratic Socialists of America, or DSA, and their allies told POLITICO in a July 6 report that they have moved staff, volunteers and money into Michigan and Wisconsin for the 2026 midterms. Rep. Rashida Tlaib, a democratic socialist, is running for reelection in Michigan's 12th Congressional District and will face Shanelle Jackson in the primary, NewsNation reported on July 23. Michigan's next election is August 4, according to the Michigan Secretary of State. Wisconsin's primary is August 11, and the general election is November 3.

The Associated Press reported in March that Democrats had recently been unified but faced a test after the U.S. and Israel struck Iran. Divisions came out ahead of a vote on war powers, which is when Congress decides whether the president can use military force. Those tensions have lasted into the summer. The Massie amendment vote gave the clearest picture yet of where Democrats in Congress stand.

The broader context here is a party caught between two pressures. Its base of voters is increasingly fired up against U.S. military support for Israel. At the same time, party leaders do not want to give Republicans a way to attack Democrats on national security in close races. The 103-to-98 split shows that the progressive stance has gone from a small faction's position to nearly a majority view within the Democratic caucus. Whether that shows up in primary results in Michigan and Wisconsin, where DSA-aligned organizers are focused, will give the first real electoral test of that shift in August.

What is still unclear is whether party leaders can keep the disagreement focused on military aid, as Soifer suggests, or whether the statements from Clark, Casar and Emanuel point to a bigger change in how the party deals with the U.S.-Israel relationship. The November general election, and the new makeup of the Democratic caucus that comes out of it, will offer the next clue.