President Donald Trump’s sudden change to tariff policy on Wednesday won’t affect the rates that currently apply Canadian and Mexican products, according to a White House official.

The well-timed bets likely paid off handsomely. Now, some Democratic lawmakers are calling for investigations into whether Trump's policy reversal led to any market manipulation or insider trading. Betting on short-term market swings is common and the trades in question could easily have been placed without any prior knowledge of the coming news as traders speculate on a market bounce or hedge against one every day.

President Trump said he would revive the tariffs he paused if countries do not agree to trade deals. Here's where the tariffs talk goes from here.