President Trump was joined in the Oval Office on Monday by Ukrainian President Volodymyr Zelenskyy and European leaders with the hopes of reaching a peaceful solution to Russia's three-year invasion.

Monday's talks came just hours after Mr. Trump and Russian President Vladimir Putin held a face-to-face summit in Alaska.

As questions about the talks and the U.S. role in negotiations, and any possible peacekeeping arrangements continue, those who have worked to help Ukraine and the Ukrainian people are expressing their concerns.

That includes Sen. Amy Klobuchar, of Minnesota, who said she has talked to Mr. Trump about Ukraine. Speaking in Stillwater before the conclusion of Monday's historic talks, Klobuchar said she wants to see very specific outcomes.

"The thing I am concerned about is to not give away the store to Vladimir Putin," Klobuchar said.

Klobuchar has met extensively with Zelenskyy in recent years, and has traveled to Ukraine both before and after the war started.

"Putin should not be rewarded for his invasion. He wants to keep the land that he has invaded and there is going to have to be something that allows Ukrainian people to get back at least a good portion of their land," she said.

Ukraine remains under attack from Russia, even as the latest White House talks were happening. Klobuchar's concern is echoed by Minnesotans who have worked to bring Ukrainians to the state.

David Waldschmidt collaborated with the Stillwater Rotary Club and local churches to relocate a Ukrainian family to Stillwater.

"I participate with sponsors across Minnesota in chats and meetings and I can say, pretty universally, everybody is distressed," Waldschmidt said.

Klobuchar said she also wants to see Ukrainian children who were taken by Russia to be returned immediately — a point she said should not be up for negotiation.

She added that Congress needs to act to put together additional sanctions that could be used as leverage against Putin if no agreement is reached.