Washington (CNN) President Donald Trump and his son are publicly warning Roy Moore against seeking a US Senate seat in Alabama, fearing that the allegations of sexual assault that torpedoed his bid two years ago will again cost Republicans a winnable election.

"Republicans cannot allow themselves to again lose the Senate seat in the Great State of Alabama. This time it will be for Six Years, not just Two," the President tweeted early Wednesday. "I have NOTHING against Roy Moore, and unlike many other Republican leaders, wanted him to win. But he didn't, and probably won't."

Moore, a former judge, has been teasing a Senate run in recent weeks to challenge incumbent Sen. Doug Jones, to whom he lost a 2017 special election . That race was dramatically shifted after a report published by The Washington Post, based on interviews with more than 30 people, said Moore pursued relationships with teenagers while he was in his 30s. One woman said she was 14 years old when Moore initiated sexual contact with her, though the legal age of consent in Alabama is 16. After the report, another woman came forward to accuse Moore of sexually assaulting her when she was 16.

Moore has repeatedly denied the allegations and later sued three of the women , alleging a "political conspiracy." The legal battle is still in the courts.

Neither the President -- who endorsed Moore late in his 2017 bid -- nor his son, Donald Trump Jr., referred to the allegations against Moore in their comments this week. White House counselor Kellyanne Conway, speaking to reporters about the President's tweets Wednesday, also did not mention the allegations.

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