Complex sentence: He was an unsuccessful candidate for election in 1910 to the Sixty-second Congress, but was elected as a Democrat to the Sixty-third Congress (March 4,1913-March 3,1915).
Split into simpler sentences: He was an unsuccessful candidate for election in 1910 to the Sixty-second Congress. Reed was elected as a Democrat to the Sixty-third Congress (March 4,1913-March 3,1915).