FACT CHECK BY NEWSWEEK
Trump did speculatively raise the question of medical experts researching disinfectants as a possible COVID treatment, which Psaki was alluding to. And though he initially touted an "injection inside or a cleaning," he clarified in the same press conference that any treatment he was speculating on would not be through injections.
Despite Trump's dubious, conjectural and inarticulate comments, he did not directly suggest that people inject themselves with disinfectant.