(CNN) - An outspoken critic of Mark Sanford is accusing the embattled South Carolina governor of orchestrating a smear campaign against Lt. Gov. Andre Bauer.
Republican State Sen. Jake Knotts wrote to fellow members of the state legislature on Wednesday accusing Sanford and his allies of spreading rumors that Bauer is gay - a claim that was reported earlier this week by a blogger who seeks to out closeted conservative politicians.
"As a former target of a false rumor started by the Sanford Camp I can tell you with absolute certainty this attack was orchestrated on behalf of Mark Sanford, either directly or indirectly, and financially subsidized by him or one of his many 'front-groups,'" Knotts wrote. The letter was first reported by "The Palmetto Scoop," a South Carolina political Web site.
Knotts, an ally of Bauer and a fierce opponent of Sanford, said there is no truth to the gay rumors that have dogged Bauer for years.
"I have known Andre since he was eight years old," Knotts told CNN. "Ain't a homosexual bone in his body. That boy is a good boy. It's a just an attempt to prevent Andre from become governor."
Bauer publicly called on Sanford to resign last week, a request that was promptly rejected by the governor. Bauer is also planning to enter the crowded race to succeed Sanford next year. If Sanford resigns or is forced from office before his term expires, Bauer would assume the governorship, a move that would allow him to run as an incumbent in 2010. Bauer said if Sanford resigns within the next month, he would bow out of the governor's race.
Bauer himself addressed the gay rumors earlier this summer, telling The State newspaper: "One word, two letters. 'No.' Let's go ahead and dispel that now."
"It's an absolute effort by Sanford's people to discredit Andre," Knotts said of the rumors. "Sanford hates Andre so bad it's pitiful."
Knotts said allies of the governor shopped the rumor because "they dont like that Andre is young, Andre is smart, and they see Andre as a threat to them."
"Every time I have seen Andre and as long as I've known him, he's always had a pretty girlfriend," Knotts told CNN. "They love him, he treats them well, he treats them nice, he treats them with respect. He doesn't hang out in bars and go from woman to woman. Everybody that knows Andre knows for sure he ain't been seen hanging on to no damn man."
Sanford's office pushed back hard against Knotts' allegations.
"This letter is simply wrong - and in that regard, as bizarre as many of the other claims and attacks of recent weeks," said Sanford spokesman Ben Fox. "Some have even argued this indeed points to an obsession with slandering anyone who tries to change the 'good ol' boy' system of politics in Columbia.
"South Carolina is facing serious challenges, and the Governor is dedicated to addressing these challenges alongside other members of the legislature committed to the same," he said. "We have a state capital with too much spending, too little transparency, and as shown by this letter, at times too many political attacks."
Knotts is the state senator who first raised questions about Sanford's mysterious absence from Columbia in June, before it was revealed that the governor had left the country to visit his mistress. In the letter to fellow legislators, he repeated his demand that Sanford step down or be impeached.
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