I believe a lot of this is connected with Las Vegas Sands owner Sheldon Adelson - prior to this Lindsey had little interest in online gambling legislation, and these politicians have all received campaign donations from Adelson at some point.
Adelson says he has strong moral objections to online gambling (those objections appear to be fairly selective, because he's into wagering on the horses via the internet and in the past has flirted with Pokerstars in running live tournaments at his land casinos)
He also believes that online gambling poses a danger to brick and mortar casinos, where he continues to make billions, despite the growing empirical evidence that internet gambling enhances rather than detracts from land casinos.
If you read Casinomeister News every Friday you'll see how this guy is pouring a great deal of cash into getting his way in the United States - he's behind the Coalition to Stop Internet Gambling and its high-profile frontmen, one of whom (former senator Blanche Lincoln) has just scored a lobbying contract with LVS.
He's also using PR companies to push an orchestrated opposition to online gambling across a wide range of media, especially those with a political readership. He has launched anti-online gambling advertising in print and on television, and his spokesmen have been appearing at many speaking engagements and media interviews - it's clearly a big, well-funded and organised campaign and he's on record as saying he will spend whatever it takes to get online gambling banned.
The man has massive resources and is reportedly the eleventh richest man in America, and one of the biggest - if not the biggest - Republican Party donors, handing out around $100 million in the last presidential race.
For me, this guy is a chilling illustration of how much influence a very wealthy and unelected individual can have on the political scene. Just yesterday there were reports that four US Republican governors with presidential ambitions are to be his guests in May as he decides who to back for the next political race for power.