O'Keefe has been involved in the movement to stop Donald Trump from becoming the Republican presidential nominee in 2016 . With attorney David B. Rivkin , he penned a column in the '' Wall Street Journal '' encouraging Republican delegates to the 2016 Republican National Convention to " recognize that they are bound only by their consciences . " According to O'Keefe and Rivkin , " state laws that purport to bind delegates ca n’t be enforced without violating the First Amendment . " O'Keefe formed a group called Delegates Unbound , which CNN described as " a robust effort to convince delegates that they have the authority and the ability to vote for whomever they want . " In October 2013 , it was revealed that John Chisholm , the Democratic District Attorney of Milwaukee County , had launched a secret " John Doe investigation " into the activities of Wisconsin conservatives . Wisconsin is one of three states that allow John Doe investigations , in which prosecutors are allowed to compel people to produce documents and give testimony as well as bar them from talking publicly about the investigation . These types of investigations are called " John Doe probes " as their purpose is to determine whether a crime has been committed , and if so , by whom . Prosecutors are allowed to conduct their investigation in secret and can order targets and witnesses not to tell anyone about the matter . Francis Schmitz , a Republican , was appointed special prosecutor in the probe . The probe , launched in the summer of 2012 , was investigating whether conservative groups in Wisconsin had engaged in illegal campaign coordination
2016 Republican National Convention
2016 Republican National Convention
Eric O'Keefe (political activist)