Health authorities in Los Angeles county have declared a health emergency due to poor air quality.

Potential Liberal leadership candidate Christy Clark faces questions about party loyalty.

Lawyers warn Canada creating a two-tiered immigration system.

Canada's Liberals will choose a new leader on March 9.

The two biggest fires burning near Los Angeles are still mostly out of control.

Venezuela's Nicolas Maduro being sworn in for a controversial third term as president today.

At least 5 people killed in southern California wildfires.

Comments from US president-elect Donald Trump generate worry among some residents of Canada's North.

CBC News has obtained details about Canada's planned response to US tariffs.

Ontario Premier Doug Ford stands up to Donald Trump's expansionist rhetoric.

Three major fires tear across southern California, forcing thousands to flee their homes.

Temperatures at hypothermic levels during search for earthquake survivors in Tibet.

How the next 2 months could play out in Canadian politics.

What Prime Minister Justin Trudeau's resignation means for Ontario politics.

And how bergamot producers in Italy are struggling for control of its brand.

Prime Minister Justin Trudeau expected to announce his intention to resign at 10:45 ET.

Coalition representing people with disabilities says Ontario needs to enforce new accessibility rules.

Seth Rogen and Catherine O'Hara joke about their Canadian accolades at the Golden Globes.