President Donald Trump and his Democratic challenger, Joe Biden, are facing off Thursday night in Nashville, Tennessee, more than three weeks after their first debate.
The president will be armed with dubious new reports of alleged maleficence by Biden's son that have so far failed to draw much attention beyond conservative media.
Some Trump advisers are urging him to trade his aggressive demeanor for a lower-key style, hoping Biden will get himself in trouble with verbal gaffes.