Sessions was afraid of the Deep State. He was afraid that they would make something up about him.
So he took the cowards way out, he recused himself.
From 2018
Sessions has never asserted himself at the Justice Department, Trump told Fox News in an interview broadcast on Thursday.
“The Dems are very strong in the Justice Department,” he said. “I put in an attorney general that never took control of the Justice Department, Jeff Sessions. Never took control of the Justice Department. And it’s it’s sort of an incredible thing.”