NEW : Venezuelan president Hugo Chávez wants to meet with new Colombian president . NEW : Earlier in his speech , Santos vowed to `` preside over a government of national unity . '' Foreign ministers of Colombia and Venezuela to meet Sunday . Juan Manuel Santos takes office Saturday afternoon . Santos won more votes than any presidential candidate in Colombian history .
NEW : Venezuelan president Hugo Chávez wants to meet with new Colombian president . NEW : Foreign ministers of Colombia and Venezuela to meet Sunday . Juan Manuel Santos takes office Saturday afternoon . Santos won more votes than any presidential candidate in Colombian history .