It was Sen. John McCain’s staff who asked security at the Denver Center for the Performing Arts to remove people holding protest signs at the venue — not U.S. Secret Service agents, who were not involved in Carol Kreck’s ouster from the galleria.

A video of the incident circulating widely on the Internet shows a DCPA security guard saying that he was told by the Secret Service to remove Kreck, who was holding a paper sign that said “McCain = Bush.”

But Thursday, after two days of being vilified by bloggers, letter writers and others, the Secret Service emphatically denied involvement.

“Contrary to some recent reporting, the Secret Service had no involvement in Ms. Kreck being removed from the area,” said Malcolm D. Wiley Sr., spokesman for the Secret Service. “It was not done at our request or suggestion. Any assertion to the contrary is inaccurate and inconsistent with our established policies and procedures.”

That prompted the DCPA to re-examine the reasons its guard sought to have Kreck removed.

“A representative of Senator John McCain’s staff respectfully asked that the venue for its July 7 Town Hall Meeting, The Denver Center for the Performing Arts, not allow persons to display signage within the Arts Complex,” DCPA officials said in a statement.

DCPA spokeswoman Suzanne Blandon said the guard who told Kreck to leave was “simply mistaken” in identifying the Secret Service as the agency that wanted her to leave. Blandon said the guard did not intend to use the Secret Service as leverage and did not mean to mislead anyone.

“He is not a trained speaker in any way,” she said. “It was the height of the moment, a situation not typical of that complex. He was simply trying to uphold the policy as he understood it to be.”

A previous federal appeals court decision determined that the galleria area where Kreck was standing is not necessarily a public spot and that protests can be curtailed there.

Kreck, a 60-year-old librarian and former Denver Post reporter, was cited for trespassing by Denver police at the Monday event.