ACT's leader believes four-year Parliamentary terms would lead to more accountability.
The Government plans to introduce legislation to go to a referendum - potentially as early as the next general election.
The opposition would need to get more proportional representation in Parliament Select Committees, providing greater checks and balances.
David Seymour says that would mean more debate.
"I think it would be genuinely better if laws had to go in front of a Select Committee for six months, as run by the other guys, to beat it around."
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