India, Feb. 20 -- The US Supreme Court on Friday quashed President Donald Trump's sweeping tariffs that he had imposed on almost every trading partner of the country, citing a doctrine called "major questions". The full nine-judge bench gave a split 6-3 verdict to strike down the tariffs as unlawful.

This is one of the biggest blows to Trump's policy from the judiciary since he took office in January last year.

But what exactly is the "major questions doctrine" that the SCOTUS used to strike down Trump's tariffs on almost the entire world?

Follow updates on the SCOTUS ruling on Donald Trump's tariffs LIVE here.

The "major questions doctrine" is a conservative framework which requires actions by the government's executive branch of "va...