In terms of the Patriot Act, and all the other things he has pledged he would do, such as transparency in government, Obama has reneged on his promises. He pledged to end torture, but he has continued the CIA renditions where you kidnap people and send them to another country to be interrogated. Why is Obama doing that if he doesn't want torture anymore? Throughout Obama's career, he promised to limit the state secrets doctrine which the Bush-Cheney administration had abused enormously. The Bush administration would go into court on any kind of a case that they thought might embarrass them and would argue that it was a state secret and the case should not be continued. Obama is doing the same thing, even though he promised not to.
An Interview with Nat Hentoff