Laila Harre has admitted that the Internet Mana Party made a mistake by not distancing itself from Kim Dotcom in the lead up to the General Election.

Hone Harawira failed to win Te Tai Tokerau, and Internet Mana finished on just over 1.2% last night, well short of the 5% needed to put an MP into Parliament.

The party's main financial backer, Mr Dotcom, says he carries the loss on his shoulders and says he didn't realise "brand Kim Dotcom was poisoned" until the past few weeks.

Ms Harre told TV ONE's Q and A that it "was a mistake" that Mr Dotcom continued to have a high profile association with the Internet Mana Party's campaign in the last month.

The party leader said they "underestimated the aggressiveness with which Internet Mana would be treated" because of the party's association with Mr Dotcom.

Ms Harre said she thinks the left failed to win the election because the parties had "made a serious error in not working more co-operatively".

"I think that the Labour Party made an error from the start, rather than accept the reality of Internet Mana they brought into the right wing narrative about Internet Mana and they joined in the game.

"So by bashing us they actually bashed themselves."

Mr Cunliffe hit out at Mr Dotcom this morning, saying that he had hurt the left's campaign.

"Mr Dotcom needs to look himself in the mirror because he spent millions of dollars to drive the left down, which is absolutely not what he said he wanted to do.

"If he spent half of that on a 'get out and vote campaign' we would be in a lot better shape today," he told Q and A.

National swept home with 48.1% of the vote and will likely have 61 seats in Parliament, while the Labour Party slumped to 24.7%.