Jeff Sessions, former Attorney General, is expected to announce his candidacy for his old Alabama Senate seat Thursday. Sessions resigned when he accepted the post of Attorney General.

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Former Attorney General Jeff Sessions is expected to announce plans to enter the 2020 race for the Alabama Senate seat he held before joining the Trump administration, sources familiar with the effort tell Fox News.

The sources said the announcement is likely to happen Thursday. Sessions is scheduled to join Fox News’ “Tucker Carlson Tonight” on Thursday night at 8 p.m ET to discuss the race.

Should he enter the contest, he would join a crowded field of Republicans already running to take on Democratic incumbent Sen. Doug Jones. The filing deadline closes Friday afternoon.

Sessions has not spoken with President Trump or Majority Leader Mitch McConnell about running for his old Senate seat, the sources said. He has hired Curt Anderson of On Message to be his campaign consultant.

Sessions, who resigned from the Justice Department a year ago Thursday amid public attacks from the president he served, was one of Trump’s most loyal and trusted advisers before their relationship soured over his recusal from the Russia investigation.