Nobel laureate Paul Krugman has taken a potshot at former President Donald Trump‘s campaign for focusing on what he describes as “imaginary” problems. What Happened: In a post on X, formerly Twitter, Krugman accused the Trump campaign of denouncing a non-existent bad economy, runaway crime, and alleged failures by President Joe Biden and Vice President Kamala Harris‘ administration. According to Krugman, “We’ve all become desensitized, but it’s amazing how at this point the Trump campaign rests entirely on denouncing things that aren’t happening — a imaginary bad economy, imaginary runaway cri…