The Herald understands the person called from Bridge's phone. Bridge could not be reached when contacted by the Herald tonight, but he denied he was the caller when questioned outside Parliament.
A spokesman for National leader Judith Collins said she had no comment.
Merv told Lush he was in Manurewa and had planned to vote for Samarakone for the local seat before she decided to run for Auckland Central.
Nuwanthie Samarakone. Photo / Brett Phibbs
The Auckland Central seat became available after the resignation of former National Party deputy leader Nikki Kaye last month.
I was the one who had to tolerate Merv (sic) for ten minutes. I didn’t sense a political operative - I just sensed someone who had run out of people to talk to. #merv merv
"I'm a bit confused because there's billboards all over the place with this 'Nuwi' girl and then I understand that she's also standing in Auckland Central," he said.
"Can you have a candidate in one electorate also standing for another?
"She's already standing in Manurewa and I was ready to vote for her but now I understand that she's going over to Auckland Central - I'm confused."