Sen. Charles Schumer (D-N.Y.) said Sunday that the United States and its European allies should use the World Trade Organization and the World Cup to pressure Russian President Vladimir Putin in the Ukraine crisis.

Sen. Charles Schumer (D-N.Y.). (Lauren Victoria Burke/Associated Press)

"We should tell Putin and the Russians that if they keep this up, we will move to expel them — along with the Europeans — from the WTO, and we will not allow the World Cup to go forward in four years in Russia," Schumer said on NBC's "Meet the Press."

The Democrat also suggested that Europeans have shown a tendency to appease Russia, which has backed separatists in eastern Ukraine. He said the United States and its allies should step up pressure to change Russia's course, focusing on diplomatic rather than military solutions.

"Putin has to be told to pay a price," Schumer said. "We have to be smart about it. Militarily, we don't have the strength.They have the second-largest army. No Americans want troops in the Ukraine, but we do have strength economically and diplomatically. We should use it."