Vice President Kamala Harris used a joint campaign appearance with President Joe Biden in the critical swing state of Pennsylvania on Monday to say that U.S. Steel should remain domestically owned — concurring with the White House's monthslong opposition to the company's planned sale to Japan's Nippon Steel.

Her comments came during a rally before cheering union members marking Labor Day in the industrial city of Pittsburgh, where Harris said U.S. Steel was "an historic American company and it is vital for our country to maintain strong American steel companies."