On Nov. 15, shortly after midnight, President Donald J. Trump tweeted a link to a New York Post headline:
“Tax filings reveal Biden cancer charity spent millions on salaries, zero on research”
Waking up later that morning, Fox News host Laura Ingraham and former Trump campaign manager Corey Lewandowski, gleefully lent their voices to the now-familiar cacophony of disinformation. A day later, Fox News host Sean Hannity joined their chorus.