Former FBI Director James Comey James Brien ComeyTrump jabs at FBI director over testimony on Russia, antifa Graham: Comey to testify about FBI's Russia probe, Mueller declined invitation Barr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' MORE on Wednesday said an independent Justice Department and FBI are essential to Americans' liberty.

Where are the voices of all the leaders who know an independent Department of Justice and FBI are essential to our liberty? “You are not only responsible for what you say, but also for what you do not say.” — Martin Luther — James Comey (@Comey) January 3, 2018

Comey's tweet comes a day after President Trump appeared to call for the Justice Department to take action against Comey and former Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE adviser Huma Abedin.

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"Crooked Hillary Clinton’s top aid, Huma Abedin, has been accused of disregarding basic security protocols," Trump tweeted Tuesday.

"She put Classified Passwords into the hands of foreign agents. Remember sailors pictures on submarine? Jail! Deep State Justice Dept must finally act? Also on Comey & others," he added.

Trump also lashed out at top FBI officials last month. In a series of tweets, he suggested FBI Deputy Director Andrew McCabe may have been compromised by political donations and ripped Comey as a leaker.

Trump last year fired Comey from his job at the FBI.

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Comey later testified before the Senate Intelligence Committee that Trump had asked for his loyalty during a January dinner at the White House. He also testified that Trump pressured him during an Oval Office meeting in February to end the investigation into former national security adviser Michael Flynn.

Trump has disputed both claims.

Comey over the past few months has tweeted out quotes that appear related to certain news stories of the day.

On New Year's Eve he tweeted that he hopes 2018 brings "more ethical leadership, focused on the truth and lasting values."