"They promised bills and laws in favor of immigrants in exchange for votes" is the one way among the following choices given in the question that political machines, such as Tammany Hall, work with and for immigrants.
The Dakota believes the U.S government was focused on the Civil war and would not fight back. They should attack right away. They believed that if they waited, the government would punish all of the Dakota for the young men killing the white settlers at Action.<span />
The doctrine that allowed people living in the territories to decide the issue of slavery through their governmental bodies was called popular sovereignty.
