Trump is embarking on what may be his most disruptive action yet for the global economy by broadening his grievances to how other countries choose to tax and regulate.

The president said his advisers would devise new tariff levels reflecting countries’ tariffs, taxes, subsidies and other policies affecting trade with the United States.

WASHINGTON (AP) — President Donald Trump is taking a blowtorch to the rules that have governed world trade for decades. The “reciprocal’’ tariffs that he announced Thursday are likely to create chaos for global businesses and conflict with America’s allies and adversaries alike.

President Donald Trump is likely to dust off a 1930 trade law largely forgotten for decades to back his new reciprocal U.S. tariffs that will match other countries' higher import taxes, trade and legal experts say.

The president tasked top Cabinet officials to study the matter further before deciding on specifics, a process the White House said could take weeks or months.

In the oval office today, President Trump instructed his administration to investigate if other countries are employing unfair trade practices against the U.S. and how reciprocal tariffs could create a level playing field.

Trump rolled out his plans to boost tariffs to match tax rates other countries charge on imports, adding to economic worries as inflation rises.