The conservative Wall Street Journal editorial board warned Wednesday that President Donald Trump is playing with financial fire. This week, Trump declared a weaker dollar "great," but the Journal warned "he should be careful what he wishes for," as experts have sounded the alarm on what could become a catastrophic miscalculation. They often discover that a weak dollar is a liability," the editorial said. Other politicians for decades have chased the fantasy that a weaker dollar magically boosts exports and jobs. "This should set off alarms for Mr. Trump, since a weak dollar risks inflation he can ill-afford before the November midterms," the Journal warned.