Long-threatened tariffs from U.S. President Donald Trump have plunged the country into a trade war abroad — all while on-again, off-again new levies continue to escalate uncertainty.

As U.S. and Ukrainian officials prepare to meet in Saudi Arabia this week, President Donald Trump has privately made clear to aides that a signed minerals deal between Washington and Kyiv won’t be enough to restart aid and intelligence sharing with the war-torn country, according an administration official and another U.S. official.

The economy in 2018 was much different than the one today, and so are the Fed's options for keeping it on track.

Canada's next prime minister has helped run two Group of Seven economies in crisis before and now will try to steer Canada through a looming trade war brought by U.S. President Donald Trump, a threat of annexation and an expected federal election.

National Economic Council director Kevin Hassett said in an interview with ABC News' "This Week" that the tariffs are not meant to start a trade war. "What happened was that we launched a drug war, not a trade war, and it was part of the negotiation to get Canada and Mexico to stop shipping fentanyl across our borders," Hassett said.

The leaders of both Canada and Mexico got on the phone with President Donald Trump this past week to seek solutions after he slapped tariffs on their countries, but China’s president appears unlikely

Earlier this week, the Trump administration imposed across-the-board 25% tariffs on goods from Canada and Mexico.