Scott Bessent prepares legal brief for solicitor general, confident Supreme Court will uphold Trump's tariffs under emergency powers.

A divided U.S. appeals court ruled that most of President Donald Trump's tariffs are illegal, undercutting his use of the levies as a key economic policy tool.

U.S. Treasury Secretary Scott Bessent reportedly told Reuters on Monday that there are "other authorities that can be used" to uphold the tariffs.