Polls open in Kenyan presidential election said to be tight

Polls opened Tuesday in Kenya's unusual presidential election. The top candidates are Raila Odinga, who has vied for the presidency for a quarter-century, and deputy president William Ruto, who has stressed his journey from a humble childhood to appeal to millions of struggling Kenyans long accustomed to political dynasties. More than 22 million people are registered to vote in this election.