Despite Obama saying very clearly that the U.S. had no intentions of meddling in Iranian elections, Iran is saying the U.S. is meddling. Just as Obama said, the Iranian government is trying to demonize the opposition by aligning them with the U.S. This kind of remind me of republican tactics.
Iranians don't want an overhaul of the government. They just want their vote to matter, according to Susanne DiMaggio, an Iranian expert. She believes that violence will escalate.