Thanks to John McAuliff for pointing out another important sponsor of Cuba trips - the Center for Democracy in the Americas based in Washington, D.C.
So, following a post from earlier today, here are four of the top sponsors of congressional travel to Cuba:
* The Center for International Policy spent about $81,989 on 52 trips.
* The Lexington Institute spent $61,454 on 31 trips.
* The Center for Democracy in the Americas spent $38,646.75 on 22 trips - 19 for Democrats, the rest for Republicans.
* The Alliance for Responsible Cuba Policy spent $33,771 on 24 trips.
These numbers taken from LegiStorm, a Web site that tracks lawmakers' salaries and spending. Members of Congress and their staffers took the trips from around 2000 through August 2009.
Are any other groups spending comparable amounts to send U.S. lawmakers to Cuba? Or are these the top four?