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) Sen. Lindsey Graham, a frequent critic of President Donald Trump, said Thursday that many of the President's actions are troubling -- but that does not make them criminal. The South Carolina Republican told CBS's Gayle King that it was inappropriate for Trump to tell James Comey that he needed his loyalty over dinner, as the former FBI director alleged in testimony released Wednesday. "Half of what Trump does is not OK," he said Thursday on "This Morning." "If you are trying to convict him for being a bull in a China shop, crude and rude, you'd win." "A lot of this stuff troubles me, but it is not a crime," Graham added."Half of what Trump does is not OK," Graham said ThursdayHe said, however, that Comey's opening statement shows there is no obstruction of justice case against Trump 
 Question:The ousted FBI director wrote that _ asked him to pledge his loyalty.

Donald Trump