NAIROBI (AFP) - Kenya’s Uhuru Kenyatta, whose trial for crimes against humanity over post-election violence five years ago is due to begin in April, launched his campaign for president Saturday by warning against foreign interference. Kenyatta, currently deputy prime minister, is one of the main contenders for the top job in general elections scheduled for March 4. His running mate William Ruto, a former minister, is also expected in the dock at the International Criminal Court in The Hague in three months for crimes against humanity. “We want to tell the world to let Kenyans decide... we have offered our candidacy and it is up to Kenyans to decide on their leadership,” Kenyatta told tens of thousands of supporters at a political rally in Nairobi.