preferences. Voters are free to continue numbering as many preferences as they like beyond the minimum number specified. Another savings provision allows ballot papers with at least 6 below the line preferences to be formal. The voting changes make it more difficult for new small parties and independent candidates to be elected to the Senate, but also allow a voter to voluntarily exhaust preferences -- that is, to ensure their vote cannot flow to specific candidates or parties -- if none of the voter's candidate preferences are elected.

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