Complex sentence: During his 2004 general election campaign for U.S. Senate, police representatives credited Obama for his active engagement with police organizations in enacting death penalty reforms.Obama resigned from the Illinois Senate in November 2004 following his election to the U.S. Senate.
Split into simpler sentences: During his 2004 general election campaign for U.S. Senate, police representatives credited Obama for his active engagement with police organizations in enacting death penalty reforms. See also: Obama resigned from the Illinois Senate in November 2004 following his election to the U.S. Senate.