An image from a Katter's Australian Party commercial that has offended the Queensland gay community. Photo / Supplied
A Katter's Australian Party commercial intended to paint Liberal National Party (LNP) leader Campbell Newman as a hypocrite for supporting gay marriage has backfired on the minor party.
The ad asks how well voters know Mr Newman and features him repeating the words: "I support gay marriage."
It also features images of two shirtless men, and Mr Newman handling a skirt.
But instead of achieving its goal, the ad has sparked outrage among Queensland's gay and lesbian community and support groups.
Equal rights campaigner Phil Browne on Monday lodged a complaint with the Advertising Standards Bureau, labelling the ad as "vile".
Premier Anna Bligh criticised both the LNP and the party founded by eccentric federal MP Bob Katter.
The ad would not have been made if Mr Newman was clear on whether he would repeal Queensland's same-sex civil union legislation, Ms Bligh said.
"If Mr Newman had given a clear answer on this issue I would suggest it wouldn't be such a big one during the campaign," she told reporters in Brisbane.
"This ad ... is totally disrespectful of the many gay Queenslanders who proudly contribute to their state every day of their lives," he said in a statement.
Bob Katter told Network Ten he respected his half-brother's position.
"I admire his candour, his forthrightness in coming forward," he said.