President Trump says Russia should be allowed to rejoin the Group of Seven industrial nations, and Russia's foreign ministry has welcomed his remarks.

Speaking with reporters in the Oval Office on Tuesday, before his scheduled trip to France for the G-7 summit, Trump encouraged Moscow's return to the elite group.

"I think it's much more appropriate to have Russia in," he said. "It should be the G-8 because a lot of the things we talk about have to do with Russia."

Updated at 10:57 a.m. ET

President Trump says he will put off a planned visit to Denmark after the country's prime minister made it clear that she has no intention of selling Greenland to the U.S., calling the idea "absurd."

In a Tuesday night tweet, the president said Denmark is "a very special country with incredible people," but added that "based on Prime Minister Mette Frederiksen's comments, that she would have no interest in discussing the purchase of Greenland, I will be postponing our meeting ..."

The U.S. used to send a lot of its plastic waste to China to get recycled. But last year, China put the kibosh on imports of the world's waste. The policy, called National Sword, freaked out people in the U.S. — a huge market for plastic waste had just dried up.

Where was it all going to go now?

For months, Hong Kong's streets have seethed with discontent. Scenes from the semiautonomous region show protesters, sometimes numbering in the hundreds of thousands, many wearing surgical masks and carrying umbrellas that have come to signify resistance.

The images are astonishing, and the issues that set the protests in motion are complex.

So here's a primer breaking down the major players, why they have poured into the streets and the response so far from China.

Strong majorities of Americans from across the political spectrum support laws that allow family members or law enforcement to petition a judge to temporarily remove guns from a person who is seen to be a risk to themselves or others, according to a new APM Research Lab/Guns & America/Call To Mind survey.

Why does e-cigarette maker Juul advertise its product on TV when cigarette ads are banned? The short answer: Because it can.

For nearly 50 years, cigarette advertising has been banned from TV and radio. But electronic cigarettes — those battery-operated devices that often resemble oversized USB flash drives with flavored nicotine "pods" that clip in on the end — aren't addressed in the law.