Back when there was a big fight in Russia called the "Russian Revolution," some American people who were Jewish (that means they were part of a religion called Judaism) didn't like the people who were in charge of the fight. The people in charge were called "Bolsheviks." The American Jewish people who didn't like the Bolsheviks thought they were doing bad things, like taking away people's freedom. They didn't want the Bolsheviks to win the fight, so they spoke out against them. They wanted things to be fair and equal for all the people involved in the fight, not just some of them.