Talk about striking out. Glenn Kessler, who works at The Washington Post as a political fact-checker, took a swipe on Sunday at former President Donald Trump, who had just delivered a stem-winder of a speech at the Conservative Political Action Conference (CPAC) in Orlando, Florida. In his hour-plus address, Trump at one point blasted President Joe Biden for continued school closings. “Trump complaining about kids not back in schools yet. Who was president a month ago?” Kessler wrote on Twitter. The post was retweeted more than 4,000 times. But, uh, Biden was president a month ago. In fact, he had been president for 40 days when Kessler posted his tweet. Twitterers teed off, pointing out that a month before Trump’s speech was January 28, eight days after Biden took office. “Fact check: today is Feb. 28th. a month ago was Jan. 28th. Joe Biden was sworn in to office on Jan. 20th. So, Joe Biden was president a month ago,” wrote one.