Wells MP Tessa Munt has claimed she is being targeted by a "concerted campaign" over allegations she claimed a single occupier discount on her council tax.
The Lib Dem is being investigated over allegations she let friends stay in her home while receiving the discount.
Ms Munt denies any wrongdoing, saying one of the guests spent nine nights there over a period of 10 months.
She said she the campaign included a website demanding her removal.
The 'Anti-Sleaze, Anti-Munt' website contains a petition calling on Lib Dem leader Nick Clegg to force Ms Munt to stand down.
Responding to her critics, Ms Munt said she had been "completely upfront" about the people who stayed with her.
"There is no sleaze. I just have to wait until these investigations are sorted," she said.
It is alleged that Ms Munt was sharing her home with broadcaster Andy Kershaw and a GP while claiming the discount for living alone.
She said both men were only registered to vote at her address and did not live there.
She said: "I'm very boring as a news story because I'm going to say the same old things.
"It's quite right that Sedgemoor District Council should investigate me. They should treat me the same as everybody else and I hope they would afford me the very same privacy as everybody else.
"But, clearly, there is a very concerted campaign against me - there's a new website that's been set up called 'Anti-Sleaze, Anti-Munt' but the investigation will continue and they will do it in the fullness of time."
A council spokeswoman said she could not comment on individual cases but the authority has previously confirmed it was investigating the claims against Ms Munt.