During a January 22 appearance on CNBC, JPMorgan Chase CEO Jamie Dimon argued that tariffs could be used as “an economic tool” and told critics of President Donald Trump’s tariff proposals to “get over it.”But the Wall Street CEO had a much different tone on Monday morning, April 7, when he sent investors a letter warning that “the economy is facing turbulence” and admitting that a recession is quite possible. With the stock market plummeting, Dimon told investors, “Whether or not the menu of tariffs causes a recession remains in question, but it will slow down growth.”READ MORE: FDR’s grandson issues new warning about Trump’s targeting of Social SecurityOn X, formerly Twitter, Dimon is drawing vehement criticize and mockery for having so different a tone on April 7 than he had on January 22.The Bulwark’s Bill Kristol, a Never Trump conservative, tweeted, “Less than three months ago, Jamie Dimon on Trump’s tariffs: Probably no big deal. ‘Get over it.’ Now: Oops. We need better capitalists.”X user John Collins wrote, “No s—, Jamie.”Former MSNBC host Mehdi Hasan noted Dimon’s comments on Trump in 2024: “Just take a step back and be honest: He was kind of right about NATO. He was kind of right about immigration. He grew the economy quite well. Tax reform worked.”READ MORE: ‘Efficiency at its finest’: Critics slam Trump for firing ‘backbone’ of wildfire fightingWashington Post reporter Aaron Blake observed, “Jamie Dimon on tariffs in Jan: ‘If it’s a little inflationary but it’s good for national security, so be it. Get over it.’ Dimon now: ‘The quicker this issue is resolved the better because some of the negative effects increase cumulatively over time & would be hard to reverse.'”Jon Cooper, ex-Long Island, New York campaign chairman for former President Barack Obama, observed, “Jamie Dimon has issued a blunt warning about Trump’s tariff policy: It threatens to raise prices, drive the global economy into a downturn, and weaken America’s standing in the world.”Eric Michael Garcia of The Independent and MSNBC tweeted, “The financial world’s top leaders have stayed silent. Jamie Dimon, JPMorgan Chase’s chief executive said that people should ‘get over’ the threat of tariffs. He declined through a spokesman to be interviewed by the New York Times.”Jesse Rodriguez, vice president of editorial at MSNBC, posted, “JPMorgan CEO Jamie Dimon says Trump tariffs will boost inflation, slow an already weakening U.S. economy, in shareholder letter.”The Daily Beast’s Julia Davis noted, “Dimon is the first CEO of a major Wall Street bank to publicly address Trump’s sweeping tariff policy as global markets crash.”Conservative Charles Gasparino, a Fox Business correspondent and New York Post columnist, criticized Dimon for the lack of “urgency” in his April 7 letter.Gasparino tweeted, “BREAKING: As I reported @jpmorgan’s CEO Jamie Dimon came out w his annual shareholder letter this AM, and he did in fact address tariffs as I said he might. But the urgency wasn’t there. Reading it you would have no idea the markets are going through a massive upheaval. It shows, also as I reported, America’s CEO class, at least in public, is still too scared to take on Trump directly.”READ MORE: ‘Really scary’: Experts sound alarm on new GOP threat to military and other mail-in voters