style="border: 1px solid #aaa" colspan=6 | MOCs ! style="border: 1px solid #aaa" colspan=3 | Votes |- style="text-align:center; background-color:#F2F2F2;" ! style="border: 1px solid #aaa" | Contested ! style="border: 1px solid #aaa" | Total ! style="border: 1px solid #aaa" | Gained ! style="border: 1px solid #aaa" | Lost ! style="border: 1px solid #aaa" | Net ! style="border: 1px solid #aaa" | Of total (%) ! style="border: 1px solid #aaa" | Total ! style="border: 1px solid #aaa" | Of total (%) ! style="border: 1px solid #aaa" | Change (%) |- | data-sort-value="Democratic Party (US)" | style="border: 1px solid #aaa; text-align: left" scope="row" | | style="border: 1px solid #aaa; text-align: left" | Champ Clark | style="border: 1px solid #aaa" | 431 | style="border: 1px solid #aaa" | 291 | style="border: 1px solid #aaa" | 71 | style="border: 1px solid #aaa" | 10 | style="border: 1px solid #aaa" | 61 | style="border: 1px solid #aaa" | 66.90% | style="border: 1px solid #aaa" | 8,210,137 | style="border: 1px solid #aaa" | 43.29% | style="border: 1px solid #aaa" | - |- | style="border: 1px solid #aaa" data-sort-value="Republican Party (US)" | style="border: 1px solid #aaa; text-align: left" scope="row" | | style="border: 1px solid #aaa; text-align: left" | James Mann | style="border: 1px solid #aaa" | 370 | style="border: 1px solid #aaa" | 134 | style="border: 1px solid #aaa" | 17 | style="border: 1px solid #aaa" | 46 | style="border: 1px solid #aaa" | 29 | style="border: 1px solid #aaa" | 30.80% | style="border: 1px solid #aaa" | 7,377,514 | style="border: 1px solid #aaa" | 38.90% | style="border: 1px solid #aaa" | - |- | data-sort-value="Progressive" | style="border: 1px solid #aaa; text-align: left" scope="row" | | style="border: 1px solid #aaa; text-align: left" | | style="border: 1px solid #aaa" | 208 | style="border: 1px solid #aaa" | 8 | style="border: 1px solid #aaa" | 0 | style="border: 1px solid #aaa" | 8 | style="border: 1px solid #aaa" | 8 | style="border: 1px solid #aaa" | 1.84% | style="border: 1px solid #aaa" | 1,761,545 | style="border: 1px solid #aaa" | 9.29% | style="border: 1px solid #aaa" | - |- | data-sort-value="Socialist" | style="border: 1px solid #aaa; text-align: left" scope="row" | Socialist | style="border: 1px solid #aaa; text-align: left" | | style="border: 1px solid #aaa" | 335 | style="border: 1px solid #aaa" | 0 | style="border: 1px solid #aaa" | 1 | style="border: 1px solid #aaa" | 0 | style="border: 1px solid