In 1945, Truman told Eisenhower during the Potsdam Conference that if desired, the president would help the general win the 1948 election,[111] and in 1947 he offered to run as Eisenhower's running mate on the Democratic ticket if MacArthur won the Republican nomination.[112]
As the election approached, other prominent citizens and politicians from both parties urged Eisenhower to run for president. In January 1948, after learning of plans in New Hampshire to elect delegates supporting him for the forthcoming Republican National Convention, Eisenhower stated through the Army that he was "not available for and could not accept nomination to high political office"; "life-long professional soldiers", he wrote, "in the absence of some obvious and overriding reason, [should] abstain from seeking high political office".[111] Eisenhower maintained no political party affiliation during this time. Many believed he was forgoing his only opportunity to be president as Republican Thomas E. Dewey was considered the probable winner and would presumably serve two terms, meaning that Eisenhower, at age 66 in 1956, would be too old to have another chance to run.