At least 16 states — led by California — have joined to sue the Trump administration over the U.S. president's declaration of a national emergency to fund a wall on the U.S.-Mexico border.

Welcome to The National, the flagship nightly newscast of CBC News.

A convoy of angry Albertans and other westerners rolls into Ottawa Tuesday for a mass protest against federal energy and environmental policies that has also become a magnet for extremist, anti-immigrant elements.

The climate scientist who popularized the term "global warming" has died. Wallace Smith Broecker was 87.

The ecstatic sailor shown kissing a woman in Times Square celebrating the end of the Second World War died Sunday. George Mendonsa was 95.

Scientists on Monday said they have decoded the genome of Earth's largest predatory fish, detecting numerous genetic traits that help explain its remarkable evolutionary success.

Transgender sportswomen hit back at Martina Navratilova after the tennis champion said "its insane and it's cheating" for transgender women to be allowed to compete in women's sport.

Prime Minister Justin Trudeau's top aide, Gerald Butts, has resigned as the leader's principal secretary, effective immediately.

Anyone under 18 should not be given cough and cold products containing opioids, such as codeine, after a safety review found early opioid use "may be a factor in problematic substance use later in life," Health Canada says.

A body has been recovered from a house destroyed in an explosion early Sunday, police confirm to CBC Calgary.

Eight Canadian nurses have arrived in Montreal from Haiti. The group left the Caribbean country after days of violent anti-government protests.

A ready-to-eat salad kit has been recalled in Newfoundland and Labrador, New Brunswick and Ontario due to possible Listeria contamination, the CFIA says, noting the possibility of recalls in other provinces.

Politicians and business executives in the Netherlands are working to avoid the worst economic outcome as Britain’s uncertain future in the face of Brexit sends shockwaves to continental Europe.

The former frontman of The Police has had a wildly successful music career, but he's been facing big challenges on the theatrical stage that have forced a revamp of his play The Last Ship.

No matter who won the 2016 US presidential election, Canada was bracing for NAFTA to go down in flames, internal government documents show.

Record low unemployment numbers paint a picture of a healthy labour market where workers have plenty of choice. But that doesn't mean everyone who needs a job can find work that fits their skills, industry and location. Here's a look at why the headlines might not reflect reality for all Canadians.

Killer whales are the only predators that regularly kill and devour Pacific white-sided dolphins off the B.C. coast. So researchers were surprised when drone footage showed such dolphins playing within a few fin-spans of killer whales’ toothy jaws.

Nearly one-quarter of the interpreters employed by the Canadian government's Translation Bureau have suffered health issues directly related to their jobs, including acoustic shock caused by sudden, loud sounds.

Many people in Haiti are bracing for violent protests across the country as political leaders urged citizens to return to normal activities on Monday following 11 days of anti-government riots that have forced the closure of schools and many businesses.

Dozens of Ontario investors say they were conned out of millions of dollars after fraudsters using fake names were featured as investment "experts" on their favourite radio stations — on shows listeners say sounded like news but were actually infomercials.

Sisters Jane and Annabelle Green are following in their parents' skate tracks as they take to the ice for Team BC at the 2019 Canada Winter Games.

It's British Columbia's sixth Family Day, but the first time the province is celebrating on the same weekend as many other parts of the country.

Parents fear their baby — who was born a month premature — might have been exposed to measles during a visit to B.C. Children's emergency room on the first day of February.

Metro Vancouver can expect 2 to 5 cm while up to 10 cm expected for the Fraser Valley.

The number of sockeye salmon that made it to the Fraser River last fall was lower than originally predicted, prompting a conservation group to blame the federal fisheries regulator for allowing the area to be overfished.

Team used helicopter in separate emergencies in B.C.'s East Kootenay region on Sunday.

There is currently a measles outbreak in B.C., with eight new cases reported on Friday. Here's what you need to know to keep you and your family safe.

One hiker has been rescued, but his partner is still missing after an avalanche near a North Vancouver recreation area early Monday.

An international team of scientists left Vancouver on the weekend for a research expedition to the Gulf of Alaska where they will conduct the first comprehensive study of Pacific salmon in the region.

Prime Minister Justin Trudeau's top aide, Gerald Butts, has resigned as the leader's principal secretary, effective immediately.

A B.C. parolee who missed curfew at his designated residence in Prince George more than two weeks ago has been arrested in Alberta.

IHIT and Surrey RCMP are investigating a homicide in Surrey that took place Sunday afternoon.

Dozens of oilsands environmental impact studies are marred by inconsistent science that's rarely subjected to independent checks, says a university study.

The Philippine health secretary said Monday that 136 people, mostly children, have died of measles and 8,400 others have fallen ill in an outbreak blamed partly on vaccination fears.

Forget about Tuesday's provincial budget: in northern B.C., the biggest source of political speculation is what a draft plan to protect the caribou population will look like.

Edith Iglauer, 101, a ground-breaking journalist, brought an open curiosity and literary sensibility to the tiny B.C. village she made her home.

Killer whales are the only predators that regularly kill and devour Pacific white-sided dolphins off the B.C. coast. So researchers were surprised when drone footage showed such dolphins playing within a few fin-spans of killer whales’ toothy jaws.

A Maple Ridge, B.C. mother has restarted a petition to make vaccinations mandatory at public schools amid a measles outbreak in Vancouver where eight cases were reported at one school.

Dean Unger was doing research for his new book at the Kaatza Station Museum and Archives in Lake Cowichan when he uncovered an incredibly rare manuscript.

The man whose family is at the centre of a measles outbreak in Vancouver said he didn't vaccinate his children because he distrusted the science at the time.

Alex DeBrincat had three goals and two assists, and the Chicago Blackhawks held on to beat the Ottawa Senators 8-7 on Monday night for their ninth win in 11 games.

What a difference a year has made in the life of Chelsea Carey. Flashback to the Scotties in Penticton, B.C., last February. Carey was trying to do everything she could to salvage the curling season after some devastating losses.

Mark Giordano's goal and assist paced the Calgary Flames to a 5-2 win over the visiting Arizona Coyotes on Monday.

Vladimir Guerrero Jr. is not worrying about whether he will start the season with the Toronto Blue Jays. The 19-year-old is considered the top prospect entering 2019. Yet, it would not be surprising if Toronto kept the third baseman in the minor leagues for the first 15 days.

Canada's Collin Cameron won the country's first gold medal of the world para Nordic ski championship in Prince George, B.C., capturing the men's cross-country sitting sprint title ahead of American Daniel Cnossen.

Czech winger and 13-time NHL all-star Jaromir Jagr returned Monday from a series of injuries to play for the Kladno Knights, the hometown club he owns in the Czech Republic. The 47-year-old played on the top line with another ex-NHLer, Tomas Plekanec.

Bruce Bochy of the San Francisco Giants says he will retire after this season, his 25th as a major league manager.

Transgender sportswomen hit back at Martina Navratilova after the tennis champion said "its insane and it's cheating" for transgender women to be allowed to compete in women's sport.

Joey Votto has spent the off-season trying to make sure he doesn't have another subpar season. The Cincinnati Reds star from Toronto hit only 12 homers in 2018, his fewest in a full season, and batted .284, his lowest since 2014.

Prince Edward Island's Suzanne Birt upset Team Canada's Jennifer Jones 8-6 on Monday at the Scotties Tournament of Hearts. Birt won it with a single in the 10th end when Jones's final stone overcurled.

The Canada Games board adopted its gender inclusion policy in December, and it has been implemented for the Winter Games that are happening now through March 3 in Red Deer, Alta.

It was 1981 when the soon-to-be-married Rick and Lorraine Lang were on the ice together, capturing the Canadian mixed championship in Winnipeg. Almost 40 years later, they're still sharing their love of curling and each other.

Caster Semenya, the two-time Olympic 800-metre champion from South Africa didn't take questions as she arrived at the Court of Arbitration for Sport on Monday, but she flashed her fingers in a "V" shape and smiled as she entered.

Florida Panthers centre Aleksander Barkov scored a hat trick against the Montreal Canadiens on Sunday night, including this between-the-legs beauty.

The Anaheim Ducks raised Scott Niedermayer's No. 27 to the rafters at the Honda Center, honouring the Hall of Fame defenceman who helped lead the Ducks to their only Stanley Cup title in 2007.

Rosie MacLennan of King City, Ont., started off the 2019 season with a bang on Sunday, capturing a silver medal in the women’s individual trampoline competition at the World Cup opener in Baku, Azerbaijan.

Marcus Stroman is ready to embrace a leadership role with the Blue Jays this season, but he's also concerned that the lack of veteran presence on the team's roster will do a disservice to Toronto's young stars.

Coach's Corner star Don Cherry made his feelings known about the Carolina Hurricanes' elaborate victory celebrations on Hockey Night In Canada on Saturday. The team responded in kind on Twitter.

A track worker was nearly flattened in Lake Placid, New York by Monaco's four-man bobsleigh team after jumping onto the track.

Follow all the action from the 2019 Scotties Tournament of Hearts as CBC Sports reporter Devin Heroux is providing live updates from Sydney, N.S.