Trump calls Obama 'grossly incompetent', hits back over COVID-19 criticism

US President Donald Trump on Sunday called his predecessor Barack Obama "grossly incompetent," in response to criticism from former president of current leership's handling of coronavirus crisis.

This came as Trump arrived back at White House after a working weekend at Camp David.

Earlier on Sunday, Obama criticized US leers overseeing COVID-19 response for a second time, telling college gruates online that pandemic shows many officials, as he put it, “aren’t even pretending to be in charge.”

He mentioned names but appears to be gearing up to campaign for his former vice president, Joe Biden, a Democrat running against President Donald Trump in vember election.

US ranks first in world in number of confirmed cases of coronavirus, having officially recorded over 1.4 million cases of new virus and 88,709 deaths.

coronavirus causes only mild symptoms in many, but it can cause serious illness or death for some, particularly older ults and those with certain health conditions.