LaGuardia in CongressFiorello LaGuardia is known best as the tempestuous mayor of New York City in the days when Franklin Delano Roosevelt sat in the White House. There had been, however, an earlier time, which matched his mayoralty years in sheer drama and perhaps surpassed them in lasting achievementLaGuardia's years in Congress. He served in the House of Representative almost continuously from 1917 to 1933, representing two ethnically diverse congressional districts: