For too long, Congress has delegated its clear authority to regulate interstate and foreign commerce to the executive branch," Grassley said.

Republican Sen. Chuck Grassley crossed party lines and teamed up with Sen. Maria Cantwell on new legislation Thursday that would pare back President Trump’s tariff authority as GOP unease

Tensions are rising within the Republican Party as key GOP senators criticize President Donald Trump's tariffs. Ted Cruz, in particular, is warning about serious consequences. As inflation skyrockets and the stock market drops,

Republican U.S. Senator Chuck Grassley introduced a bill on Thursday that would require congressional approval for new tariffs, the day after President Donald Trump unveiled sweeping new taxes on a vast array of imported goods.

Republicans in Congress are watching with unease as stock markets tumble in the aftermath of President Donald Trump’s sweeping tariffs.

As world markets slumped in reaction to President Trump’s tariffs, Democratic and Republican senators' bill would require Congress to approve new tariffs.

A U.S. Senate bill that would require congressional approval for new tariffs gained more Republican support on Friday, in the second day of a stock market rout sparked by President Donald Trump's move to impose sweeping new taxes on imports.

Senator Chuck Grassley, an Iowa Republican, joined Democratic Senator Maria Cantwell of Washington in introducing a bipartisan bill to rein in presidential authority over tariffs and give Congress more control over future trade duties.