Democratic presidential aspirant, Joe Biden, has lashed out at the United State's President, Donald Trump, calling the US President a "fool" for appearing to make fun of him (Biden) wearing a face mask.
"An absolute fool to talk that way".
"He's supposed to lead by example", Biden said.
Trump has chose to spend the Memorial Day weekend holiday at his private golf club in Virginia, but his tweet referred to a moment in 2014 when President Obama went golfing, immediately after speaking about the beheading of American journalist, James Foley.
Federal officials have recommended that people cover their nose and mouth in public when other measures, such as practicing social distancing of at least 6 feet (1.8 meters), aren't possible.
That was his first public appearance in more than two months.
"I feel great to be out here", Biden told reporters, his words muffled through his black cloth mask.
"Never, ever, forget", Biden said before leaving the wall.
Biden wore a black mask covering his mouth and nose at Monday's Memorial Day wreath-laying, in contrast with his rival for the USA presidency, Donald Trump who has yet to wear a mask in public despite guidance to the contrary from his own health authorities.
Biden gave his first in-person interview in almost two months on Tuesday to CNN's Dana Bash, calling Trump a "fool".
Biden and his wife Jill placed a wreath of white flowers at the memorial park and observed a moment of silence during the brief ceremony before returning to their motorcade.
"In this instance, Joe did not do as well as I hoped in responding, but I will say this, I go about my business every day comparing Joe Biden, to the alternative, not the Almighty".
"I know him, and he knows me".
The comment comes as Trump has sought to politicize the wearing of masks during the coronavirus crisis.
"I didn't want to give the press the pleasure of seeing it", Trump said. During a tour of a Ford manufacturing plant in MI last week, Trump was photographed not wearing one despite the company having a policy and Michigan's attorney general saying wearing it was a "legal responsibility". "I think they're ready like they weren't two, three, five years ago, and I think Bernie and Elizabeth and others deserve a lot of credit for that", he said in late April. "But I guarantee you there are multiple black women being considered".
That sparked criticism from some African American activists, and Biden made a previously unscheduled appearance on a U.S. Black Chamber of Commerce conference call hours later to say that he "should not have been so cavalier". "What they don't say is that it was my first golf in nearly 3 months, and, if I waited three years, they would do their usual "hit" pieces anyway".