Under the applicable rules, FISA warrant applications must be signed by senior Justice Department officials. With respect to the warrants to spy on Page, the first application in October 2016 was signed by then-FBI Director James Comey and then-Deputy Attorney General Sally Yates. Collyer approved the application.
The second application in January 2017 also was signed by Comey and Yates. Judge Michael Mosman approved the application.
The third application in April 2017 was signed by Comey and then-acting Attorney General Dana Boente. Judge Anne Conway approved the application.
Finally, the fourth application in June 2017 was signed by then-Deputy FBI Director Andrew McCabe and then-Deputy Attorney General Rod Rosenstein. The application was approved by Judge Raymond Dearie.
The DOJ after review says that it was evident by the 3rd warrant that no justification existed but that didn't stop Comey and McCabe
It's all falling in place now. Between Graham and Durham, it's going to be a long few months for Comey. I hope he saved most of that book money he made, he's going to need it.