Sen. Bernie Sanders (I-VT) said this week that the Republican Party under President Donald Trump is actually a "right-wing extremist" party.
The German newspaper Die Zeit asked Sanders about the troubling political climate in the United States.
"The Republican Party is really right-wing extremist," Sanders said, according to a translation provided by Google.
"I can only say to our European friends that we are working 24 hours a day, seven days a week, to give this man a strong opposition," Sanders told the paper. "I think we're making progress."
The former Democratic presidential candidate also said that Trump had "incredibly strong grassroots opposition," adding, "and I believe this will increase."