U.S. Democratic presidential nominee Joe Biden on Thursday stepped up his attack on President Donald Trump over his "America First" foreign policy and handling of the coronavirus pandemic, as the two candidates took part in separate simultaneously televised town hall events instead of a face-to-face debate.With only weeks left before the Nov. 3 election, Biden's lead over the Republican president in national polls has widened following their chaotic first debate in late September and Trump's announcement earlier this month that he had tested positive for the novel coronavirus.Trump's COVID-…READ FULL ARTICLE