When the Bolsheviks took power in 1917, the tricolor design was discarded, and a definitive new flag of the RSFSR (one of the constituent republics of the Soviet Union) was introduced in 1954 (see flag of Russian SFSR), and this remained the republic's flag until the collapse of the Soviet Union in 1991. All of the Soviet Republics' flags were created by introducing a small but noticeable change to the flag of the Soviet Union. For Russia, the change was an introduction of the left-hand blue band. The previous Soviet design was different, a plain red flag with different variants of the "RSFSR" abbreviation in the canton. Today, the Soviet flag is used by the supporters and members of the Communist Party of the Russian Federation.