In June of 2016, during a presidential election, the Obama Justice Department submitted an application for a surveillance warrant under the Foreign Intelligence Surveillance Act (FISA). Donald Trump was named in the application. The FISA court denied the application. The Obama Justice Department went back to the FISA court in October, a month before the election, and submitted a narrow application that did not mention Trump. This application was granted and the NSA surveilled Donald Trump.
Normally when government officials receive intelligence surveillance reports, the names of American citizens are redacted to protect their privacy. News reports now confirm Obama's National Security Advisor Susan Rice made repeated requests to "unmask" the names of American citizens tied to Donald Trump. This information was subsequently disseminated throughout the Justice and State Departments and leaked to the media. The dissemination of unmasked names of American citizens is a felony. Senator Rand Paul wants Susan Rice to testify before Congress under oath.