Stephen Bannon on Monday called out GOP leaders who have failed to support Alabama Senate candidate Roy Moore, telling a crowd at a rally ahead of the special election that there is a "special place in hell for Republicans who should know better."

Bannon, President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's former campaign chief and senior strategist, took aim at Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Senate GOP aims to confirm Trump court pick by Oct. 29: report Trump argues full Supreme Court needed to settle potential election disputes MORE (R-Ky.), Alabama Sen. Richard Shelby Richard Craig ShelbySenate GOP eyes early exit Dems discussing government funding bill into February GOP short of votes on Trump's controversial Fed pick MORE (R) and former Secretary of State Condoleezza Rice during a campaign rally the night before Moore faces off against Democrat Doug Jones.

"Mitch McConnell and Sen. Shelby, and Condi Rice and all that, Little Bobby Corker, all the establishment out there doesn't have Trump's back at all," Bannon said, suggesting they are just using Trump to eke out "a tax cut."

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"There's a special place in hell for Republicans who should know better," he added, to the sound of a applause.

Bannon is campaigning for Moore in a heated race that has captured the national spotlight after a handful of women came forward last month and accused the candidate of making unwanted sexual advances when they were underaged teenagers and he was in his 30's.

Breitbart's executive chairman's remarks appeared to make a dig at Trump's eldest daughter, Ivanka Trump, who said there is a “special place in hell for people who pray on children” after the allegations surfaced.

One woman claims she was 14 years old at the time Moore touched her sexually.

Moore has denied the allegations of wrongdoing and pushed forward with his campaign.