Complex sentence: Thus, in January 2008, Larson left the church, rejoined the Libertarian Party and in May announced his candidacy for Member of Congress for the 1st District of Virginia.
Split into simpler sentences: Thus, in January 2008, Larson left the church. Shortly thereafter, Larson rejoined the Libertarian Party and in May announced his candidacy for Member of Congress for the 1st District of Virginia.