title: Kenyan election board chairman says hard to guarantee free election
text: NAIROBI (Reuters) - Kenya s election board chairman Wafula Chebukati said on Wednesday ahead of a repeat presidential poll on Oct. 26 that it was  difficult  to guarantee the election would be free and fair. He invited political leaders in the country to discuss impediments to the vote, which was ordered by the Supreme Court on Sept. 1, adding he would not tolerate further threats to board staff.    