McCain made his comments in a speech at an international security conference in the German city of Munich.
The U.S. senator, a presidential candidate in 2000, said Russia appears to be pursuing autocracy both at home and abroad. He also said he seriously questioned whether the member states of the G8 group of industrialized nations should attend a G8 summit scheduled to be hosted by Russia in St. Petersburg later this year.
McCain also criticized Moscow for using its natural gas resources as a means of punishing democratic Ukraine and Georgia while providing cut-rate gas supplies to a dictatorship in Belarus.
