Complex sentence: Bowers began his career as a journalist with a newspaper in Terre Haute, Indiana and, while residing there, became the Democratic candidate for the U.S. House of Representatives at the request of powerful Democratic leader John Edward Lamb.
Split into simpler sentences: Bowers began his career as a journalist with a newspaper in Terre Haute, Indiana. While residing there, he became the Democratic candidate for the US House of Representatives, at the request of powerful Democratic leader John Edward Lamb.