President Trump is meeting with his counterparts at the G-7 summit in France, where he walked back previous statements on trade with China.

On Friday, Trump hiked tariffs on Chinese imports and threatened to invoke a 1977 act authorizing the president emergency powers to force U.S. businesses out of China.

Updated at 11:45 a.m. ET

Joe Walsh, a conservative talk-radio host and former Tea Party congressman, is launching a long-shot primary challenge to President Trump. He's the second Republican to officially announce a run against Trump, who has a strong approval rating among his party's base.

Walsh, 57, supported Trump during his 2016 campaign but in recent months has been offering a bitter critique of the president, calling Trump a liar and bully who is unfit for office. Walsh has also attacked Trump from the right.

Everyone knows what a trumpet looks like: shiny brass. But the Instrument of Hope is mostly black.

Except for the lead pipe — the straight part that extends from the mouthpiece.

It's made of bullets.

"Bullets that were shot and fired out of a gun, cut up and pieced together," says Josh Landress, who made it.

The protests that have rocked Hong Kong for much of the past three months have followed familiar patterns.

First, hundreds of thousands of people, including families with babies in strollers, pack the city streets. Then the sun goes down, the families head home, and the young men and women in black come out. They come ready to confront the "popo," as they call the police.

Tucked away in the northwest corner of Wyoming is one of the largest gun collections in the world: The Cody Firearms Museum. But it's recently gotten a makeover, moving away away from being a monument to guns and toward being an educational space on gun safety, history and culture.

The museum is located at the Buffalo Bill Center of the West alongside four other museums and near the east entrance to Yellowstone National Park. So often, people just happen upon it. That was the case for Kim Cato and her family, visiting from Idaho.

A few years ago, TV celebrity Rachel Maddow was at Rockefeller University to hand out a prize that's given each year to a prominent female scientist. As Maddow entered the auditorium, someone overheard her say, "What is up with the dude wall?"

She was referring to a wall covered with portraits of scientists from the university who have won either a Nobel Prize or the Lasker Award, a major medical prize.

At 79, Harry Reid may be retired, living in a gated community in Henderson in his home state of Nevada, but his national political shadow looms large.

Dale Knuth, now 58, says that in childhood her weight was a source of anguish — largely because of how her family treated her. "I had a brother who tormented me constantly," she says. "If I came home from school and was hungry and ate an apple, I'd be called a cow, or a pig or whatever."

Her parents, she says, did nothing to stop her brother "except to say, 'Yeah, you're getting fat.' " She had no physical outlet for her frustration — she wanted to play softball, but her mother wouldn't allow it.

President Trump's evident desire to identify who's most "loyal" to Israel has a clear winner: U.S. evangelicals.

Not only do they outpace U.S. Jews in their support for policies that favor the Israeli government, but U.S. evangelicals have also become the fastest-growing sector of the Israeli tourism market. The developments may even be related.

An Iranian oil tanker that's been at the center of a diplomatic drama between the United States and Iran is back on the move six weeks after being seized off the coast of Gibraltar.

The Grace 1 was seized by British authorities in July at the request of the U.S. due to suspicions that it was bringing oil to Syria in violation of European Union sanctions.