Trump sparks Twitter debate after swaying and twitching during moment of silence for the fallen on Memorial Day (12 Pics)

President Donald Trump can be seen swaying from side to side during a moment of silence he attended at Arlington National Cemetery for Memorial Day. 

The president attended the solemn ceremony Monday morning, although it started 30 minutes behind schedule. The White House did not provide a reason for the delay. 

Video from the event captures Trump moving up and down, either bobbing on his heels or moving back and forth during the moment of reflection.

ARLINGTON, VA, USA - U.S. President Donald Trump and first lady Melania Trump participate in a Wreath Laying Ceremony at the Arlington National Cemetery in Virginia. Trump could be seen moving back and forth during a moment of silence

The movement came as he clasped his hands and faced a wreath during ceremonies that were changed this year for social distancing as the coronavirus moved toward taking 100,000 American lives. 

His movements were notable compared to a military honor guard who stood behind him at attention. The president held a solemn expression on his face throughout. 

Trump was also seen swaying during the National Anthem – with Vice President Mike Pence standing straight upright visible in the background. At another moment he raised his hand, then suddenly lowered it again.

Trump's movements attracted notice online – including some snide remarks about his taking of hydroxychloroquine. Trump said he has completed his regimen of the drug, which he said he was taking as a preventive measure for the coronavirus, for which he has repeatedly tested negative.

The anti-malarial has not been through rigorous scientific testing for the disease, although it has been approved for off-label use.

Among the side effects for the drug are dizziness and nausea.  

President Donald Trump touches a wreath at a ceremony at the Tomb of the Unknowns

President Donald Trump and first lady Melania Trump participate in a Wreath Laying Ceremony at the Arlington National Cemetery in Virginia.

Twitter users took note of the president's movements

Some users compared Trump, who does not drink alcohol, to a drunk driver at a police checkpoint

He also drew comparison to the 1970s toy Weebles

Some users offered long-distance diagnoses

Others posited a coronavirus infection – which Trump has repeatedly tested negative for

'Weebles wobble but the don't fall down,' went the toy's slogan for the toy

Trump, 74, was out of the White House multiple times over the long weekend. He golfed on Saturday and Sunday at his private club in Virginia. A long-lens camera captured him on the links, and driving a golf court.

Trump defended the golf trips on line, noting it was a chance to get some exercise. 

After attending the events at Arlington to mark Memorial Day, he traveled by motorcade back to the White House and then flew to Fort McHenry in Baltimore, where he gave a speech connecting wartime suffering and the impact of the coronavirus.

The weekend of events came as the U.S. death toll approached 100,000. 

The swaying episodes drew comment online. 'Is the President having trouble standing up straight as the National Anthem begins at Arlington Cemetary (sic) or am I seeing things?' he tweeted, in a comment noted by the New York Daily News.  

Trump defended his decision to golf this past weekend, saying he got some excercise and hadn't been able to play in nearly three months

President Donald Trump swings a golf club during a round of golf, amid the coronavirus disease (COVID-19) outbreak, in Sterling, Virginia, U.S., May 24, 2020