How did Siqueiros's art show his belief's

art and politics blended seamlessly together. His murals, big and bold, were often infused with causes that supported his leftist politics. Also, Siqueiros wasn't afraid to bring art to his political work.

While still with the Mexican Revolution Army, he co-founded a group called the Congress of Soldier Artists. He also teamed up with Diego Rivera, a fellow muralist and hard-core leftist, and Javier Guerrero, to start El Machete, the weekly paper that became the official mouthpiece for the country's Communist Party.