President Donald Trump speaks during a news conference on the North Portico of the White House, Monday, Sept. 7, 2020 (Patrick Semansky/AP Images)

September 8, 2020 06:35 AM EDTUpdated 10:56 AM

CEOs join regulators and top scientists vowing to hold the line on Covid-19 vaccine. But will that get in the way of Trump's 'big surprise'?

Nine top developers leading the race to develop a vaccine to combat Covid-19 are presenting a unified front this morning as they jointly commit …

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CEOs join reg­u­la­tors and top sci­en­tists vow­ing to hold the line on Covid-19 vac­cine. But will that get in the way of Trump's 'big sur­prise'?