He said that at one point he sent an email to the spokesman for Russian President Vladimir Putin about approvals from the Russian government.
The attorney, Michael Cohen, said in a statement to the House intelligence committee that he worked on the real estate proposal with Felix Sater, a Russia-born associate who he said claimed to have deep connections in Moscow.
The panel is one of several on Capitol Hill investigating Russian interference in the 2016 presidential election and possible coordination between the Trump campaign and Russia.
Cohen also disclosed that Trump was personally aware of the deal, signing a letter of intent and discussing it with Cohen on two other occasions.
More From This Section
The potential deal shows that the Trump Organization was actively considering doing business in Russia during the presidential election, providing special counsel Robert Mueller's investigators considerable fodder for turning their investigation into Russian collusion toward Trump's personal and business finances. Trump has said Mueller would be crossing a red line by delving into his finances.
"To be clear, the Trump Organization has never had any real estate holdings or interests in Russia," the company said.
The negotiations of the possible Trump Tower Moscow deal were first reported Sunday night by The Washington Post.
Yesterday, The New York Times reported on an email in which Sater appeared to boast that the real estate deal could help Trump get elected. Sater did not respond to a request for comment from the AP on Monday.
"I will get all of Putins team to buy in on this, I will manage this process."
He also said in another email about a possible ribbon- cutting: "I will get Putin on this program and we will get Donald elected."
In the two-page statement obtained by the AP, Cohen said he emailed Putin's press secretary, Dmitry Peskov, after Sater suggested that "the proposal would require approvals within the Russian government that had not been issued."
Cohen said he did not recall any response to his email, or any other contacts with Peskov or other Russian government officials about the project.