Former US presidents Barack Obama, George W. Bush, Bill Clinton, Jimmy Carter, and their spouses took part in new commercials in support of COVID-19 vaccines, ABC reported.

"In order to get rid of this pandemic, it's important for our fellow citizens to get vaccinated," Bush says, adding later: "So roll up your sleeve and do your part."

Former President Donald Trump and former first lady Melania Trump have not taken part in the campaign.