 The polls are heating up in France in the first round of a parliamentary election, which could put the government of President Emmanuel Macron in a tough spot. The far-right's national rally is widely expected to win the biggest share. Most seats are unlikely to be determined until the second round in a week's time. Mr Macron called the snap vote after disappointing European election results. The BBC's Debbie Ross. Iran will have a runoff election to replace its president. CBS's Elizabeth Palmer in Tehran takes a look at the top two candidates.