Since then, the Bronx has always supported the Democratic Party's nominee for President, starting with a vote of 2-1 for the unsuccessful Al Smith in 1928, followed by four 2-1 votes for the successful Franklin D. Roosevelt. (Both had been Governors of New York, but Republican former Gov. Thomas E. Dewey won only 28% of the Bronx's vote in 1948 against 55% for Pres. Harry Truman, the winning Democrat, and 17% for Henry A. Wallace of the Progressives. It was only 32 years earlier, by contrast, that another Republican former Governor who narrowly lost the Presidency, Charles Evans Hughes, had won 42.6% of the Bronx's 1916 vote against Democratic President Woodrow Wilson's 49.8% and Socialist candidate Allan Benson's 7.3%.)
Try to answer this question if possible (otherwise reply "unanswerable"): How much of the Bronx's vote in 1948 did Truman get?
55%