The recent insider trading controversy triggered by the sudden change in tariff policy by the Trump administration has once again brought the issue of stock trading regulation for U.S. Congress members into the public spotlight. In April 2025, Trump suddenly announced the suspension of additional 'reciprocal tariffs' on multiple countries, causing U.S. stocks to surge. Meanwhile, his ally, Republican Congresswoman Marjorie Taylor Greene from Georgia, was reported to have intensively purchased tech stocks like Apple and NVIDIA two days before the policy announcement, involving an amount of $315,000. This incident exposed the systemic loophole that allows Congress members to profit from insider information.

Although the U.S. passed the 'Stop Trading on Congressional Knowledge Act' in 2012, requiring members to disclose large trades, the law has been poorly enforced. In 2024, Democratic members of Congress still achieved an average stock return rate of 31%, far exceeding the S&P 500 index's 24.9%. Former House Speaker Nancy Pelosi's husband, Paul Pelosi, made a profit of $1.25 million from accurately betting on the chip bill, and his 'stock god' record continues to provoke public dissatisfaction.