“Everyone is paranoid,” said a person close to Trump’s White House. “Everyone thinks they’re being recorded.”

Mueller is doing little to abate those suspicions. Tucked inside last week’s 10-page plea deal Flynn struck with government prosecutors is an agreement that the former White House national security adviser could avoid a potential lengthy jail term in part by “participating in covert law enforcement activities.”…

“They’re probably shitting bricks,” said an attorney who represents a senior Trump aide caught up in the Russia investigation. “How can you not?”