More than 300 Palestinian Americans fanned across Capitol Hill on Tuesday, meeting with over 100 congressional offices in a coordinated advocacy push organized by Americans for Justice in Palestine Action. Their timing was sharp: the visit landed days after reports that the Trump administration had approved a $2.8 billion arms package to Israel that includes 20,000 MK-84 2,000-pound bombs and 20,000 BLU-117 variants — the same class of munitions responsible for mass civilian casualties in Gaza. The legislative math tells the story of a shifting floor. In July 2025, 26 Democratic senators voted to block some arms transfers to Israel — the first time a majority of Democratic senators had ever done so. By April 2026, that number reached 40 in the 100-member Senate. In the House, the Block the Bombs Act has accumulated 81 co-sponsors calling for a partial arms embargo. Twenty-two Democratic senators also introduced a resolution last week to compel the State Department to investigate violence committed by Israeli forces and settlers in the West Bank, where at least nine US citizens have been killed in recent years. The numbers from Gaza remain staggering. Nearly 74,000 Palestinians have been killed since October 7, 2023, including nearly 1,400 since a ceasefire agreement took effect in October 2025. The advocates framed the $2.8 billion package as running directly counter to public opinion: polls have consistently found majority support for conditioning at least some weapons transfers to Israel, with an IMEU Policy Project poll from December finding a majority of Republicans under 45 would prefer a 2028 presidential candidate who supports reducing taxpayer-funded weapons to Israel. AJP Action executive director Osama Abu Irshaid identified what he called cracks forming in the Republican dam. While exceedingly few Republican members have voted to limit aid, Abu Irshaid argued the post-Trump GOP would be the inflection point: "What is after Donald Trump when Donald Trump no longer owns the Republican Party, owns the MAGA movement? I think that's when you will see more cracks taking place." The December polling data on younger Republicans lends this some structural weight beyond wishful thinking. Advocates also pushed on a second front: immigration enforcement as a tool to suppress pro-Palestine advocacy. Salah Sarsour, president of the Islamic Society of Milwaukee and a three-decade US resident, was detained by ICE in April and released in June. His legal team charges he was targeted based on a coerced confession obtained during Israeli detention decades ago. Leqaa Kordia, targeted after the 2024 campus protest wave, spent 368 days in ICE detention. Both still face deportation proceedings. The advocates sought reform of language in the Immigration and Nationality Act of 1952 that allows deportation of individuals whose presence the administration deems to have "adverse foreign policy consequences." The convergence of these two tracks — arms transfers and immigration enforcement — represents the structural bind Palestinian American advocates face. Taxpayer-funded munitions flow to Israel while immigration law is wielded against those who protest the flow. Gregory Meeks, ranking Democrat on the House Foreign Affairs Committee, used procedural leverage last week to slow congressional clearance of the arms package, but the institutional default remains deeply entrenched. The 26-to-40 Democratic vote trajectory is the most politically significant data point. If that curve continues, it approaches the threshold where arms conditionality becomes a viable legislative outcome rather than a protest vote. But the Republican firewall remains nearly total, and the executive branch controls the pace of transfers. The advocates are betting that demographic shifts and sustained constituent pressure will eventually breach both barriers. The $2.8 billion package is the immediate test of whether that bet is premature.