Joe Biden Joe BidenOmar fires back at Trump over rally remarks: 'This is my country' Trump mocks Biden appearance, mask use ahead of first debate Trump attacks Omar for criticizing US: 'How did you do where you came from?' MORE is recording a robocall for Alabama Democratic Senate candidate Doug Jones that will go out to voters on Monday, according to Politico.

The former vice president joins former President Obama, who has also recorded a separate robocall in support of Jones.

Biden’s call will not mention Jones's Republican rival, Roy Moore, according to Politico, who spoke with a source close to the Jones campaign. Biden campaigned for Jones in Alabama in October, before the sexual misconduct allegations against Moore were reported.

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, meanwhile, has recorded one for Moore.

In Obama’s robocall, he refers to Jones as a “champion for justice” and encourages Alabama voters to “get out and vote" on Tuesday.

“This one’s serious,” Obama says. “You can’t sit it out.”

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Trump's call in support of Moore says the Republican candidate will help Trump “steer this country back on track after eight years of the Obama disaster."

Trump has thrown his support behind Moore despite multiple allegations of sexual misconduct, including assault, against the candidate. Other GOP lawmakers have called for Moore to withdraw from the race and insisted on an “immediate ethics investigation” if he is elected.