[['district', 'incumbent', 'party', 'first elected', 'result', 'candidates'], ['illinois 2', "barratt o'hara", 'democratic', '1948', 'lost re - election republican gain', "richard b vail (r) 53.6% barratt o'hara (d) 46.4%"], ['illinois 3', 'neil j linehan', 'democratic', '1948', 'lost re - election republican gain', 'fred e busbey (r) 57.2% neil j linehan (d) 42.8%'], ['illinois 6', "thomas j o'brien", 'democratic', '1942', 're - elected', "thomas j o'brien (d) 64.6% john m fay (r) 35.4%"], ['illinois 15', 'noah m mason', 'republican', '1936', 're - elected', 'noah m mason (r) 63.3% wayne f caskey (d) 36.7%'], ['illinois 20', 'sid simpson', 'republican', '1942', 're - elected', 'sid simpson (r) 59.3% howard manning (d) 40.7%'], ['illinois 25', 'melvin price', 'democratic', '1944', 're - elected', 'melvin price (d) 64.9% roger d jones (r) 35.1%']]
only 2 of the listed politician are Republican
only 2 of the listed politician are [ENT]