The US President also said his country was "becoming so economically strong again, and strong in other ways".
"Regarding Treasury Secretary Mnuchin's comments about the administration's weak dollar policy, I want to make sure that you understand what having currency weakness means-most importantly, it is a hidden tax on people who are holding dollar-denominated assets and a benefit to those who have dollar-denominated liabilities", Dalio wrote.
"Several members of the Council expressed concern, and this concern was also in a sense was broader than simply the exchange rate, it was about the overall status of global relations right now", he said.
"In the past, the Treasury secretary has always publicly said, 'I want a stronger dollar,"' Rogoff said.
Mnuchin declined to preview Trump's speech, but he said the president's message would be true to his America First rhetoric.
Foreign exchange rates have reacted to comments from the US Treasury Secretary's endorsement of a weak dollar and British chancellor's safisfation with a strengthening sterling, comments that drew criticism from the International Monetary Fund.
Whether or not the White House choreographed the dollar's slide to its lowest level in three years, the USA administration is certainly providing ammunition for those betting that the greenback will continue to weaken. The U.S. dollar is trading lower against most major currencies.
The clarification came before Air Force One touched down in Zurich around 11.30am on Thursday and Mr Trump set off in a helicopter for his much-anticipated arrival at the WEF, where he is set to address global business and political leaders on Friday. If the European Central Bank and Draghi are hawkish then look for the Euro to surge against the U.S. Dollar. Investors tend to push up prices for precious metals when they're anxious about a weak dollar and the prospect of higher inflation.
"We want the United States to be able to compete fairly".
In 2001, Paul O'Neill told a German newspaper "we don't follow, as is often said, a policy of a strong dollar", before returning to the traditional rhetoric.