Upton Sinclair

The famous muckraker, Upton Sinclair, was avidly involved in politics. Towards the begging of his career he was a socialist, and included commentary surrounding his political views in his writing. This can be seen in one of his best known works, King Coal, which told about the coal strikes of 1914-1915. However, in 1917 in order to support President Woodrow Wilson, Sinclair left the Socialist Party. He then rejoined the party when President Wilson promoted US involvement in the Soviet Union.