President Donald Trump in recent days slapped tariffs as high as 50% on dozens of countries, restoring the type of aggressive trade policy that sent stocks plummeting a few months ago. The new round of levies prompted little more than a shrug on Wall Street.

Mexican President Claudia Sheinbaum on Tuesday said Mexico will take action if an agreement with Washington regarding new tariffs is not reached by the August 1 deadline set by her U.S. counterpart Donald Trump.

Wall Street is pointing lower before the opening bell with new tariffs announced for Europe and Mexico and as the unofficial start of earnings season get under way this week. Futures for the S&P 500, Dow Jones Industrial Average and Nasdaq each retreated by about 0.3% early Monday.

The president has earned a reputation for bluffing on tariffs. But he has steadily and dramatically raised U.S. tariffs, transforming global trade.

If a 30 percent tariff on Mexico goes into affect on August 1, a wide variety of foods will be more expensive, experts warn.

Canada will reduce the amount of foreign steel that importers can bring in tariff-free, a move to help domestic producers suffering from US President Donald Trump’s levies on the sector.