Senate kills the Stop Insider Trading Act 53-47, and the 'Copy Congress' trade just became a permanent sector

The Senate on Sept 30, 2026 voted 53–47 to advance the Stop Insider Trading Act — seven votes short of the 60 needed to clear a filibuster — and effectively killed any near-term rewrite of the 14-year-old disclosure regime. The same afternoon, the chamber fell57–43 on the Ratepayer Protection Act, a separate bill aimed at shielding utility customers from AI data-center power costs, with only four Democrats crossing over to support it. With lawmakers heading home for the pre-midterm recess, the procedural defeat is functionally final: the2026 legislative window on both bills is closed.

Public polling consistently shows roughly seven in ten voters want lawmakers barred from trading individual stocks. Democrats nevertheless voted unanimously against the bill, framing it as a backdoor voter-ID vehicle that would have also required federal-issued identification at the polls. That procedural packaging is the visible reason; the deeper reason is what the bill did and did not actually prohibit.

Average congressional outperformance is modest — Republicans' aggregate 2025 portfolio return was 17.3%, Democrats' 14.4%, against an S&P 500 of 16.8%. But the tails are where the persistence shows. Common Cause tallied 13,324 trades worth $635.6 million in 2024 alone; Capitol Trades logged 14,451 trades worth $720 million across 140 members last year. Disclosure is real, but enforcement is not: fines for a first STOCK Act violation start at $200, and no member of Congress has ever been criminally prosecuted under the 2012 law.

The disclosure regime survives intact, and so does the small but durable product ecosystem built on top of it. Two ETFs and a stack of subscription trackers now turn the 45-day STOCK Act filing cadence into a tradable signal — a structure that exists only because the law mandates timely public posting of every trade by every federal lawmaker.

Three structural forces will determine whether any version of a stock-trading restriction reaches the President's desk in 2027. First, the bill text itself is the obstacle: any measure that exempts sitting portfolios, exempts the executive branch, or rides alongside a voter-ID amendment will inherit the same 53–47 math. Second, the post-2026 midterm map is the wildcard: Republican control of the House and a Democratic Senate would reproduce the current filibuster gridlock; a unified Republican government would still need 60 votes for cloture.