1) Keeping detailed records on presidential meetings wasn’t his standard practice.
Comey never felt the need to keep records of his interactions with President Donald Trump’s predecessor, but immediately after his first encounter with the then-President-elect Trump, Comey knew documentation was a must.
“I felt compelled to document my first conversation with the President-Elect in a memo. To ensure accuracy, I began to type it on a laptop in an FBI vehicle outside Trump Tower the moment I walked out of the meeting. Creating written records immediately after one-on-one conversations with Mr. Trump was my practice from that point forward. This had not been my practice in the past. I spoke alone with President Obama twice in person (and never on the phone) — once in 2015 to discuss law enforcement policy issues and a second time, briefly, for him to say goodbye in late 2016. In neither of those circumstances did I memorialize the discussions. I can recall nine one-on-one conversations with President Trump in four months — three in person and six on the phone.”
2) He felt pressured by the President be “loyal” if he wanted to keep his job.