With the Olympics less than 100 days away, many on Capitol Hill say China needs to improve its human rights before it hosts the games.
Congressmen, religious leaders and activists rallied together to draw attention to China's actions in countries like Sudan, Burma and North Korea.
They say China is the greatest human rights abuser, and that it must recognize the dignity of people who are oppressed, especially the North Korean refugees.
"We stand to say that their lives are sacred, that they have dignity, regardless of what the Chinese government says or does," said Sen. Sam Brownback.
President Bush still plans to attend the Olympics, but other world leaders say they will boycott.