Biden opens debate with misleading 'bleach' talking point
Biden accused Trump of not taking the coronavirus pandemic seriously, saying Trump told Americans, "It's not that serious. Just inject a little bleach in your arm." That's Mostly False.
Trump's 2020 comments about treatments were criticized, but he didn't tell people to inject bleach. At a 2020 White House press briefing, Trump asked William Bryan, an undersecretary at the Department of Homeland Security, to study whether ultraviolet light could be effective "inside the body" to treat COVID-19 or whether disinfectants could combat the virus "by injection inside."
After Bryan said his lab did not study disinfectant injection, Trump clarified that using disinfectants "would not be through injection." Trump later told reporters he was being "sarcastic" when referring to injections.
-Analysis by Aaron Sharockman, PolitiFact