The Las Vegas Sun reports:

Las Vegas casino mogul Sheldon Adelson’s $5-million donation to supporters of Newt Gingrich may have helped fund distribution of a brutal anti-Mitt Romney video, but he’s not necessarily endorsing its message. . . .
Adelson, a self-made billionaire, hasn’t seen the video and has had no say in the group’s strategy for airing it, according to a source close to the Las Vegas Sands chairman.
“The key to remember here is that he gave a donation to support Newt,” the source said. “What happens from the time when that contribution lands with that PAC to now, he’s not involved with. He’s not been involved in the strategies and the tactics.”