Sally Yates: Watch out for ghosts at Mar-a-Lago

Former Deputy Attorney General Sally YatesSally Caroline YatesSally Yates: Moral fiber of US being 'shredded by unapologetic racism' Trump: 'Impossible for me to know' extent of Flynn investigation Mueller didn't want Comey memos released out of fear Trump, others would change stories MORE is defending the FBI in response to President TrumpDonald John TrumpSarah Huckabee Sanders becomes Fox News contributor The US-Iranian scuffle over a ship is a sideshow to events in the Gulf South Korea: US, North Korea to resume nuclear talks 'soon' MORE’s attacks on the law enforcement agency — and specifically Deputy Director Andrew McCabe.

Yates in a tweet on Sunday said the Secret Service should be on the look out for three ghosts at Mar-a-Lago given Trump’s tweet earlier in the day targeting McCabe.

The nod to "A Christmas Carol" was a relatively rare tweet for Yates, who has only 14 published tweets on her account.

Yates was appointed deputy attorney general by former President Obama and remained in the role in the beginning days of Trump’s administration.

ADVERTISEMENT

She was fired by Trump after she refused to implement his initial travel ban on a number of predominantly Muslim countries.

Trump in recent weeks has stepped up his attacks on the FBI, where he argues officials loyal to former FBI Director James ComeyJames Brien ComeySarah Huckabee Sanders becomes Fox News contributor 3 real problems Republicans need to address to win in 2020 Barr predicts progressive prosecutors will lead to 'more crime, more victims' MORE, who Trump also fired, have exhibited bias.

Many of Trump’s attacks have focused on McCabe, who is also a target of Trump allies in Congress. McCabe faced 17 hours of testimony from two separate committees last week.

McCabe’s wife was a candidate for a Virginia Senate seat in 2015, and in the process, received hundreds of thousands in campaign donations from a political action committee with ties to Hillary and Bill ClintonWilliam (Bill) Jefferson ClintonPoll shows Biden, Warren tied with Trump in Arizona Ben Shapiro: No prominent GOP figure ever questioned Obama's legitimacy The Hill's 12:30 Report: Trump tries to reassure voters on economy MORE. He was also involved in probes of Hillary ClintonHillary Diane Rodham ClintonPoll shows Biden, Warren tied with Trump in Arizona The Hill's Morning Report - Trump touts new immigration policy, backtracks on tax cuts Hickenlooper announces Senate bid MORE, including the investigation of her use of a private email server as secretary of State.

Reports circulated over the weekend that McCabe may retire soon, which Trump seized upon.