they sent spies to record senior members of the campaign in the middle of the presidential campaign. >> they send confidential human sources to do this. >> the watchdog says his team uncover troubling actions. >> so many basic and fundamental errors were made by so many hand-picked investigators. >> crews asked horwitz about his finding of 17 specific errors or omissions in the fisa application for carter page and a lawyer at the fbi creates fraudulent evidence, alters an email, that is in turn used as the basis for a sworn statement to the court that the court relies on. mi stating that accurately? >> that is correct. >> lawmakers on both sides call for fundamental reform to the fisa application process. >> we have to address the underlying program, the system