 to drop out of the race. Mr. Biden and those close to him say that's not happening. Iran's government says there was just a 40 percent turnout for their presidential election and now there's going to be a runoff. CBS's Elizabeth Palmer is in Tehran. We didn't see long lines outside polling stations. We have in past elections and the government did extend in the middle of the afternoon voting for an extra two hours. So that probably tells you they're anxious.