United Australia party leader to especially target South Australia and Tasmania in reported $2m national campaign over fortnight up to 14 October poll

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The campaign against the voice will be supported by millions of dollars from mining magnate Clive Palmer, who will reportedly launch an ad blitz against the referendum in the final fortnight.

Both the yes and no campaigns are preparing for a final sprint to the 14 October polling day, with major ad buys to target key states in the referendum.