Russian chess great turned activist Garry Kasparov. (AP Photo/Sang Tan)

Garry Kasparov, a leading opponent of Russian President Vladimir Putin and longtime Russian chess champion, had some tough words for President Obama and Hillary Clinton on Sunday night.

Kasparov said on his Twitter feed that Obama makes Jimmy Carter look like Winston Churchill and fretted about the possibility that Clinton would succeed Obama.

 

Kasparov notably defended Carter to some degree, saying that he at least attempted to defend human rights around he world.

In other tweets, he said that while Clinton has talked tough, comparing Putin to Hitler, her time as secretary of state was a setback for Russian-American relations.