Complex sentence: He was a political adviser for Daniel Johnson Jr. from 1993 to 1996 and later became the vice-president of the Quebec Liberal Party in 1997 and was elected as an MNA in a byelection in the riding of Kamouraska-Témiscouata on the same year.
Split into simpler sentences: He was a political adviser for Daniel Johnson Jr. from 1993 to 1996. He later became the vice-president of the Quebec Liberal Party in 1997 and was elected as an MNA in a byelection in the riding of Kamouraska-Témiscouata on the same year.