Democratic vice-presidential candidate Kamala Harris on Thursday slammed the Trump administration's response to Covid pandemic as the greatest failure in presidential history. Harris faced-off with vice-president Mike Pence in the first V-P debate. She said that although the Trump was aware of the lethality of coronavirus, it did not tell the truth to the people. Blasting Trump's attitude towards the Pandemic, Harris rubbed it in by saying that she will take a vaccine approved scientists, not by Donald Trump.