Which statement best describes political parties in the us around the 1920s? question 4 options: democrats support more government involvement and liberal ideas; republicans support shift of less government control and more conservative values. during this time many "conservative democrats" and "liberal republicans" shift parties. republicans were exclusively conservative and democrats were exclusively liberal. neither party supported any of the same issues. republicans lose popularity when the stock market crashes and the great depression sets in. the democratic party comes into power and supports more government influence in the economy to try and americans out of the great depression. republican party emerges as the main opposition to democrats; republicans generally oppose slavery and democrats generally support slavery during this time.