The campaign has already entered a bitter phase, as Mitt Romney, a leading Republican candidate, “has more money to spend than his rivals,” the newspaper reports.
A source told the Associated Press Adelson is expected to contribute as much or more to groups backing the Republican nominee, be it Gingrich or one of his rivals.
Rick Tyler, a former top Gingrich strategist and spokesman for Winning Our Future, declined to comment on the donation, which was first reported by The Washington Post. Politico reported last month that Mr Adelson was allegedly prepared to spend $20 million to help Gingrich.