The RealClearPolitics polling average for the Alabama race now gives Moore a three-point lead over his opponent, Democratic Party candidate Doug Jones. The president had side-stepped an endorsement of Moore in recent weeks, but unequivocally voiced his support of the Alabama Senate candidate under fire eight days before the election.
Romney tweeted, "Roy Moore in the US Senate would be a stain on the GOP and on the nation".
Trump had endorsed Moore before the scandal, after he won the September primary over incumbent Sen. "No to Jones, a Pelosi/Schumer Puppet!"
A woman who said she dated Roy Moore when she was 17 and he was 34 says she has found a scrapbook with new evidence of their relationship, according to a report published Monday by the Washington Post.
This comes as the Republican has been targeted by Democrats and the mainstream media for unverified allegations from almost 40 years ago, but Moore is fighting back.
One alleges he molested her when she was 14 years old.
The president still has no plans to personally campaign for Moore, but he will be holding a campaign rally in Pensacola, Florida this Friday, just under 30 miles from the Alabama state line. He did note, however, that Moore has "totally" denied the allegations against him. "If you look at all the things that have happened over the last 48 hours. Because there are groups that don't want me in the United States Senate", Moore said, before accusing the Democratic Party and the Republican establishment of working together, in November.
He later spoke over the phone with Moore in a call the White House called "positive".
"Putting all of that together", Short continued, "(Trump) is encouraging the people of Alabama to make the right decision and also acknowledging that there was not a single Democrat in the United States Senate who supported massive tax relief for the American people, and that would put (Democratic candidate) Doug Jones in a very hard position".
The accusations against Moore - and national Republicans' near total-desertion of his campaign, apart from Trump - has made the Alabama Senate race unusually competitive.