How did The Louisiana Purchase effect the native Americans?

The Louisiana Purchase included territories held by the Choctaw and Caddo tribes as well as various smaller tribes. Although talks of an independent nation for these people was introduced, it did not go far. Thomas Jefferson was not quite so stringent in his love of freedom when it came to non- white Americans. His policy was basically one that encouraged expansion by white settlers and pushed the Native American people further west, out of the way.