http://thinkprogress.org/election/2015/04/24/3650498/gop-sheldon-adelson-primary/
"Mega donor Adelson and his wife Miriam spent nearly $150 million on the 2012 election — more than the Koch brothers — and are likely to match that amount this campaign cycle. With his $32 billion net worth, Adelson was the single largest campaign donor in American history."
