Sheldon Adelson
Sheldon AdelsonReuters

Republican mega-donor Sheldon Adelson reportedly told presidential nominee Donald Trump in a private meeting that he must demonstrate a measure of humility, JTA reports Sunday, citing The New York Times newspaper.

Adelson also told Trump in the meeting last week in Adelson's suite at the St. Regis Hotel in New York that he was committed to his presidential campaign.

The newspaper cited five unnamed Republicans briefed on the meeting who were not authorized to publicly disclose information about the get-together.

Adelson declared his support for Trump in May, warning Americans at the time that failure to elect Trump will result in a “third term” of President Barack Obama in the form of Hillary Clinton.

He later sent an e-mail to members of the Republican Jewish Coalition (RJC), asking them to back Trump as well.

According to The New York Times report, Adelson’s wife, Miriam, also a large donor to the Republican Party, was at the meeting with Trump on August 24. Neither Adelson has contributed to Trump’s campaign, to groups supporting him or to the Republican National Committee since they pledged to support him during a private meeting in May at the same hotel, the Times reported.

Trump’s campaign would not comment to the Times on the meeting.