Complex sentence: In addition to the Democrat Harry Lane and Bob Selling of the conservative Republican, progressive Republicans backed candidates of the Progressive Party and the Popular Government Party, while Floyd Ramp sttod for the Socialists and yet another candidate was nominee of the Prohibition Party.
Split into simpler sentences: In addition to the Democrat Harry Lane and Bob Selling, candidate of the conservative wing of the Republican Party, progressive Republicans had other electoral alternatives, including candidates of the Progressive Party and the Popular Government Party. Meanwhile Floyd Ramp stood for the Socialists and yet another candidate was nominee of the Prohibition Party.