Complex sentence: Patrick Joseph Sullivan (March 17,1865April 8,1935) was the mayor of Casper, Wyoming from 1897 to 1898 and was a Republican member of the United States Senate from Wyoming from 1929 to 1930.
Split into simpler sentences: Patrick Joseph Sullivan (March 17,1865April 8,1935) was an American politician. He was the mayor of Casper, Wyoming from 1897 to 1898 and was a Republican member of the United States Senate from Wyoming from 1929 to 1930.