The company operated by President Trump had at least two other contacts with Russia during the 2016 campaign that were not disclosed, according to new emails.

Those emails, which were described to and reported on by the Washington Post, have also been provided to investigators on the team of special counsel Robert Mueller, which is investigating Russia's election meddling.

The earliest email dates to late 2015, and indicates that Trump's lawyer, Michael Cohen, received a proposal for a residential project that had ties to a Russian billionaire who had previously served in that country's parliament, according to the Post.

Additionally, an attorney for Trump exchanged emails about the possibility of traveling to Russia to attend an economic conference that was expected to host numerous financial and governmental leaders from the country, possibly even including Russian President Vladimir Putin.

The latest revelations come just weeks after emails from late 2015 came to light showing Cohen discussed a potential Trump Tower-like development in Moscow. Those emails said a letter of intent to pursue financing was signed by the Trump Organization, but was later dropped.

Cohen was supposed to interview with the Senate Intelligence Committee about two weeks ago, but the meeting was hastily scrubbed by the committee after Cohen released his pre-written testimony that he planned to read as an opening. The committee has since asked Cohen to return in October.

The story by the Post said White House lawyer Ty Cobb declined to comment on the new emails, and said he was not familiar with the documents.

Trump has previously denied having any active business deals in Russia. "For the record, I have ZERO investments in Russia," Trump tweeted in July of 2016.

Another attorney for the Trump Organization, Alan Garten, said the emails have to be understood "in context."

"Like any other international real estate brand, it is not uncommon for third party developers to submit proposals for potential real estate projects all over the world," he told the Post. Garten also said that only a "very small percentage of these proposals are ever pursued."