Complex sentence: Supporters of the measure asserted that it would increase voter participation, make elections more convenient for voters, as well as save the State of Oregon an estimated $3 million dollars in years which a primary and general election occur.
Split into simpler sentences: Supporters of the measure asserted that it would increase voter participation, make elections more convenient for voters. The State of Oregon would also save an estimated $3 million dollars a year, in years which a primary and general election occur.