U.S. Secretary of State Hillary Rodham Clinton arrived here from Uganda on Saturday. This is her fourth leg of an 11-day tour of Africa. The trip began in Senegal and will take her next to Malawi and South Africa. Clinton is meeting top Kenyan officials on Saturday and urging them to avoid a repeat of the 2007 presidential vote when national polls are held next year. The 2007 vote resulted in widespread violence, according to a report of the Associated Press. She will also meet members of Somalia's transitional government and regional leaders as they prepare to hold elections in 2013.