Jeffrey Sachs is a professor and director of the at Columbia University. The opinions expressed in this commentary are those of the author; view articles on CNN. (CNN)On Tuesday, President Donald Trump said the United States would halt payments to the World Health Organization (WHO). the organization with "severely mismanaging and covering up" the Covid-19 pandemic and claiming that "so much death has been caused by their mistakes." Trump is desperately trying to deflect attention from his own catastrophic behavior. He has presided over one of the largest security failures in US history,...…Jeffrey Sachs is a professor and director of the at Columbia University. The opinions expressed in this commentary are those of the author; view articles on CNN. (CNN)On Tuesday, President Donald Trump said the United States would halt payments to the World Health Organization (WHO). the organization with "severely mismanaging and covering up" the Covid-19 pandemic and claiming that "so much death has been caused by their mistakes." Trump is desperately trying to deflect attention from his own catastrophic behavior. He has presided over one of the largest security failures in US history,...WW…