Former President Donald Trump has "no plans" to participate in a Manhattan grand jury investigation into a hush money payment to porn star Stormy Daniels, Trump attorney Joe Tacopina told George Stephanopoulos Monday on ABC's Good Morning America.

“We have no plans on participating in that proceeding, Tacopina said. "Decision that needs to be made still. There's been no deadline set, so we'll wait and see.”

The Manhattan district attorney's office has been investigating whether Trump falsified business records in connection with a $130,000 payment Trump's former attorney Michael Cohen made to Daniels before the 2016 election, which prosecutors allege was to keep her from talking about a long-denied affair, sources familiar with the matter have told ABC News.

The DA's office informed Trump last week of his right to testify before a grand jury in the probe, a possible signal that the DA is moving toward a charging decision.

Tacopina said another Trump attorney, Susan Necheles, who is leading the case, has met with the prosecutors.

Asked if he expects an indictment for Trump, Tacopina said that "there shouldn't be an indictment" if "justice prevails," accusing the persecutors' office of having an "agenda."

"They've scoured his personal life and business life for seven years to try to find something," he said.

Tacopina refused to answer questions from Stephanopoulos on whether Trump authorized the payment to Daniels and whether it was connected to the 2016 presidential election. He framed the payment as a result of "extortion," and repeatedly said the payment was not directly related to Trump's campaign.

"I don't know since when we've decided to start prosecuting extortion victims," Tacopina said, saying that Trump has repeatedly denied having an affair with Daniels.

"There was absolutely no false records made, to my knowledge," Tacopina said.