WASHINGTON _ President Donald Trump's push for a coronavirus vaccine breakthrough before Election Day is forcing his Democratic presidential opponent, Joe Biden, to make a choice.
He can either cast doubt on a vaccine process widely seen among Democrats as political _ or begin to build up trust in an eventual vaccine that Biden may be tasked with distributing early next year if he wins in November.
Biden campaign officials are attempting to walk that tightrope by confronting the president on his politically advantageous timeline without undermining public confidence in a prospective inoculation.
