US elections: As rivals launch final campaign, study links 30,000 COVID-19 cases, 700 deaths to Trump rallies

President Donald Trump is mounting one final test of whether the massive crowds that often show up at his signature rallies will translate into votes as he finishes the final 48 hours of his reelection campaign with a dizzying onslaught of events in the battleground states that could decide the race.

He will hold five rallies...