Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Washington (CNN) Of all the piercing questions hanging over the West Wing, one of the most pressing is whether President Donald Trump has a taping system that captured his conversations with James Comey. But to many inside the White House, in other parts of government as well as to several close associates of the President, there is far less urgency or mystery. Nearly a dozen people from all of those walks of life told CNN they suspect it's merely Trump bluster and there's no such taping mechanism. "It's all hot air," one person inside the White House said, speaking on condition of anonymity to describe internal water-cooler conversations. "Unless he had a recorder in his pocket, this didn't happen."The White House press secretary declined Monday to answer whether Trump has a taping systemBut nearly a dozen people told CNN they suspect it's merely Trump bluster 
 Question:Even if the tapes were real, the GOP aide added, they would probably prove _'s side of the story and undercut the President's version of events.

James Comey