A pair of signs put up by National MP Craig Foss to thank the people of Tukituki for re-electing him lasted two days before vandals attacked them with a knife.
Mr Foss has put up the signs after winning the Tukituki Electorate in the last four General Elections.
"We've done it every election. Normally I put them up for about a week. This time of course, I've taken them down early."
Mr Foss put up the signs with a simple blue spray-painted message "Thanks Craig" on Havelock Rd on Sunday.
But on Tuesday night they were subject to a "targeted and quite deliberate" attack.