Biden, Trump to campaign in Georgia on eve of crucial Senate elections
Trump, 74, had previously announced that he would be in the town of Dalton on Monday night for a rally in support of the Republican candidates, incumbent senators David Perdue and Kelly Loeffler.
Tuesday's runoff election featuring Ossoff against Perdue and Warnock against Loeffler will determine which party has control of the Senate.
Both races are tight with polls showing the candidates neck and neck.
Republicans currently hold 50 seats in the Senate and a victory in just one of the Georgia races will give them a majority and the ability to hamstring Biden's agenda after he takes office on January 20.
If Democrats win the two Senate seats they will also have 50 seats plus a vice president, Kamala Harris, who can cast tie-breaking votes.