Which country have helped bolsheviks gain and hold political control

Russia

Explanation:

Bolsheviks, also known in English as the Bolshevists, were a revolutionary party that came up to align with the ideas established by a German philosopher and economist known as Karl Marx. Bolsheviks were of the opinion that one day, the working classes would remove themselves from the political and economic stronghold of the ruling classes.  

Russia organized themselves into republics and that help the Bolsheviks gain and hold political control.