Part of the problem is he's breaking all kinds of conventions. The whole playbook is out. That alone becomes important to investors Marc Chandler head of foreign exchange strategy, Brown Brothers Harriman, on Trump

The comments from the administration on the dollar are only the latest in a series, and they diverge from the past few presidential administrations, which stood by a strong dollar policy. Even Trump himself has said the dollar was too strong. Trump's Treasury Secretary pick Steven Mnuchin made similar comments, though he explained the dollar was too strong in the short term, and ultimately its strength will reflect the U.S. economy. "Part of the problem is he's breaking all kinds of conventions. The whole playbook is out. That alone becomes important to investors," Marc Chandler, head of foreign exchange strategy at Brown Brothers Harriman, said on Trump. Chandler said he is not changing his forecast for a higher dollar this year, and he too pointed to the Fed as the important influence for currencies. "I think Trump has this image of the whole world against America, everybody taking advantage," like Mexico, China and Japan, said Chandler. "He might believe it, but I don't think that's how the world perceives it. We're in the middle of a correction. This just pushes on the open door. The dollar was already falling. the stock market was already weak." Chandler said the euro was up against its 100-day moving average at 108. The dollar index fell nearly 1 percent Tuesday but recovered slightly, and the euro was at 1.077, down about 0.7 percent, also off its lows. The dollar also slumped against the yen, losing about a half percent in afternoon trading. The dollar has been strengthening, based on the idea that Trump's tax and spending policies will reflate the economy and result in higher interest rates.