|Split from||Liberal Party|
In the 1928 Greek legislative election, the party gained 6.7%, elected 20 MPs and participated in the government of the Liberals. In the 1929 Greek Senate election, the party gained 6.6% and elected 4 MPs. In the 1932 Greek legislative election, the party lost most of his power and gained 5.9% and elected 8 MPs. In the 1933 Greek legislative election, gained 4.2% and elected 13 MPs. Finally, in the 1936 Greek legislative election, the party participated in the Democratic Coalition, a coalition of centre-left parties and elected 7 MPs. After the death of its leader, Alexandros Papanastasiou, the party was dissolved.