Complex sentence: In the 1960 presidential election, Reggie was a leader in John F. Kennedy's Louisiana campaign, beginning with the 1959 invitation of Kennedy and his wife, Jackie, to attend the International Rice Festival in Crowley as honored guests.
Split into simpler sentences: In the 1960 presidential election, Reggie was a leader in John F. Kennedy's Louisiana campaign. In 1959, he invited Kennedy and his wife, Jackie, to attend the International Rice Festival in Crowley as honored guests.