The recent insider trading controversy triggered by the abrupt changes in tariff policies by the Trump administration has once again brought the issue of stock trading regulation among U.S. lawmakers to the forefront of public opinion. In April 2025, Trump suddenly announced a suspension of imposing '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 technology stocks such as Apple and Nvidia two days before the policy announcement, involving an amount of $315,000. This incident exposed the systemic loopholes that allow lawmakers to profit from insider information.

Although the U.S. passed the 'Stop Trading on Congressional Knowledge Act' in 2012, which requires lawmakers to disclose large trades, the law has been poorly enforced. In 2024, the average stock return rate for Democratic lawmakers still reached 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.