The recent insider trading controversy triggered by the sudden change in tariff policy of 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 abruptly announced a suspension of 'reciprocal tariffs' on multiple countries, causing U.S. stocks to surge. Meanwhile, his ally, Georgia Republican Congresswoman Marjorie Taylor Greene, was revealed to have made intensive purchases of tech stocks like Apple and Nvidia two days before the policy announcement, involving an amount of $315,000. This incident exposed the systemic loopholes that allow Congress members to profit from insider information.

Although the United States passed the 'Stop Trading on Congressional Knowledge Act' in 2012, requiring members to disclose large trades, its enforcement has been weak. In 2024, the average stock return rate for Democratic members was still 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 by accurately betting on the chip bill, and his 'stock god' record continues to trigger public dissatisfaction.