Later that year , Lon Nol announced he would hold presidential elections .
Was surprised when In Tam and Keo An -- the latter a reputed Sihanoukist -- not only announced that they would run , but then refused to withdraw .
Later that year , Lon Nol announced he would hold presidential elections , and was surprised when In Tam and Keo An -- the latter a reputed Sihanoukist -- not only announced that they would run , but then refused to withdraw .