ISLAMABAD Two American delegations of Congressmen are visiting Pakistan from (today) Wednesday, sources informed TheNation Tuesday. Sources said a delegation comprising of eight people including Congressmen headed by John F Tierney would arrive Pakistan today (Wednesday). The Congressmen will hold meetings with politicians and office-bearers. Another American delegation will arrive tomorrow (Thursday). When contacted Spokesperson of Ministry of Foreign Affairs Abdul Basit confirmed this and said it was a routine matter.