Republican presidential frontrunner Donald Trump is embroiled in a round of “he said, she said” with the Hispanic Chamber of Commerce over a proposed — and now cancelled — appearance with the Latino business organization.

On Tuesday, the group announced that Trump would attend an Oct. 8 question and answer session in Washington with the chamber’s president and CEO, Javier Palomarez, on “issues that are important to America’s 4.1 million Hispanic businesses.”

By Friday, the event was no longer on the calendar, with Trump and the Latino business groups at odds over who was to blame.

U.S. Republican presidential candidate Donald Trump leaves a campaign rally in Keene, New Hampshire September 30, 2015. REUTERS/Gretchen Ertl

The Chamber accused Trump of being afraid to defend his positions in front of a Latino crowd. Trump said he had never agreed to meet with the group in the first place.

“This is the first time I’m hearing about this,” Trump told CNN.

“He wanted me to do an event because he probably can’t sell tickets without me. Why would anybody do an event when he’s a negative person?” Trump added.

The Hispanic Chamber of Commerce disagreed.

“Trump’s decision to forfeit the Q&A session was motivated by the concern of being ‘put on trial,’” the group said in a statement.

“Withdrawing from the Q&A can only suggest that Trump himself believes his views are indefensible before a Hispanic audience.”

The HCC said Trump had already publicly agreed to address group, citing an interview last month with Fox News.

Trump told Fox News’ Geraldo Rivera he had reached out to Palomarez, whom he described as a “terrific guy,” and said while they do not agree on everything, “I think I agreed to do some kind of luncheon or whatever down in Washington. He added: “so, I will be going down at some point in October or whatever.”

“I will go to Washington. That won’t be that easy a meeting because you have hundreds of people and they will have hundreds of constituents of his and they may disagree with me, but ultimately we will all get along.”

Trump told CNN that he plans to be in Las Vegas for a campaign rally on the day of the would-be session.