Donald Trump has tweeted that America is "open for business" and spoken of the country's successful economy, despite the stock market tanking.
Trump posted the tweet with a video of himself speaking at an Ohio manufacturing company, suggesting his policies had galvanised the US economy.
The US President said: "Your taxes are going way down. And right now, for the first time in a long time...factories are coming back, everything's coming back."
But he didn't mention the fact that even as he was making the speech the stock markets were plummeting.
The Dow Jones Industrial Average, an index based on the performance of 30 major companies, has suffered its biggest drop in two years, crashing by more than 1,000 points in two days.
The index is actually higher than when Trump became President in January 2017, but the fall is nonetheless the biggest single-day drop in the history of the market.
Before the President's speech Raj Shah, the deputy press secretary for the White House, admitted "markets do fluctuate in the short term" but said "the fundamentals of this economy are very strong."
After the speech Sarah Huckabee Sanders, the White House press secretary, said Trump is focused on "long-term economic fundamentals" and these are "exceptionally strong."