National Business

TORONTO — Some of the most active companies traded Tuesday on the Toronto Stock Exchange: Toronto Stock Exchange (19,556.15, down 244.46 points): TC Energy Corp. (TSX:TRP). Energy. Down 83 cents, or 1.69 per cent, to $48.23 on 18.9 million shares.

WASHINGTON — Joe Biden made history Tuesday as the first modern U.S. president to visit a picket line, cheering on striking autoworkers in Michigan as part of a big-stakes play for blue-collar support in a vital electoral battleground.

TORONTO — Canada's main stock index closed down almost 250 points Tuesday with broad-based losses led by the telecom, utilities and base metal sectors, while U.S. stock markets also tumbled. The S&P/TSX composite index closed down 244.

NEW YORK (AP) — Wall Street’s September swoon accelerated, knocking stocks down to their lowest levels since June. The S&P 500 fell 1.5% Tuesday, its fifth drop in six days. The Dow lost 388 points and the Nasdaq composite gave back 1.6%.

TORONTO — An artificial intelligence researcher at Google says fixing fairness in the technology "isn't a simple thing," but the world has an opportunity to get it right as the software explodes in popularity.

Toronto and Calgary sports fans will soon be able to skip the lineup when purchasing snacks before or during games.

VAN BUREN TOWNSHIP, Mich.

NEW YORK (AP) — Taylor Swift's trip to watch the Kansas City Chiefs' Travis Kelce play football on Sunday didn't just have the internet talking nonstop.

SAGUENAY, Que. — A Quebec court has ordered Rio Tinto Alcan Inc. to pay $500,000 after the company allowed the discharge of acidic water into the Saguenay River following the failure of a boiler at its Arvida factory in Saguenay, Que., in 2019.

CALGARY — An activist investor that had been urging Parkland Corp. to sell or spin off its Burnaby refinery earlier this year is back with a set of new recommendations for the Calgary-based company.