Complex sentence: Later leaders of American white nationalism came to politics through the ANP; including a teenage David Duke and William Luther Pierce of the National Alliance, although they soon distanced themselves from explicit self-identification with Neo-Nazism.
Split into simpler sentences: Later leaders of American white nationalism came to politics through the ANP; including a teenage David Duke and William Luther Pierce of the National Alliance. Although they soon distanced themselves from explicit self-identification with Neo-Nazism.