DONALD TRUMP: Guys, a great promoter, you know?
While a third neatly summed up the political rally: "A FORMER president giving a speech about the country moving in the wrong direction while wearing his trousers on backwards is just about all my astonishment can take".
Trump also used the speech, in front of a crowd of some 1,200 Republicans, to take credit for America's vaccination programme, claiming he took "somewhat of a bet" by investing billions from the public purse in vaccines.
"It's been a five-year witch hunt, hoax after hoax", said Mr Trump.
Theories and speculation ran wild as the video made the rounds, with others proposing that the trousers might be elastic-waisted pull-ups with no button or front zipper.More news: Pope voices sorrow over Canadian deaths, doesn't apologize
Others on Twitter were equally stumped by the way the trousers wrinkled and what appeared to be a lack of fly.
While the 74-year-old's speech appeared to lack much of the raw energy and enthusiasm he often brought to his raucous, larger campaign rallies, freakish theories started circulating online about his trousers, with some suggesting he had them on backwards. Look close and tell me I'm wrong, ' tweeted New York Daily News columnist Brandon Friedman.
Writing on Twitter, a number of people have slammed the former President for thinking he would be able to create a rival to Facebook and Twitter - platforms he is banned on.
An investigation into Trump's pants conducted by myth-debunking platform Snopes claimed the photographs taken at the event clearly showed a zipper in the front, even analysing the full 90-minute speech posted by C-Span.
"Thousands of anti-Trump people are tweeting a false claim about the former president's trousers".
But a deep dive - and zoom in on photos that appeared of Trump online - confirmed that the wardrobe malfunction was a result of image-obscuring flashing cameras.More news: Biden Declares US Will Donate 80 Million Vaccine Doses
But the bulk of his attack for the first hour of his lengthy speech was directed at China, with Trump calling on nations to cancel their debt to China as Beijing's "down payment" for restitution over the COVID pandemic.
He also called for a 100 percent tariff on all goods made in China as he accused Democratic leaders of leaving the USA "demeaned and humiliated".
Others claimed the footage had been "doctored" to make a swipe at Trump's expense.
"The time has come for America and the world to demand reparations and accountability from the Communist Party of China". However, Trump claimed that Zuckerberg's attitude changed the day he left office.
The origin of the virus remains hotly contested and remains under study by United States intelligence agencies.More news: Horror: Remains of 215 children found at Canadian school site