Has anyone ever heard of this group? Are they just another pro amnesty/pro
illegal alien cabal like Feinswein/Boxer/Kennedy/Spector/Kyl?

They are a consortium of congressmen/congresswomen. Here's their website:
http://statelegislatorsforlegalimmigration.com/

My cynicism these days is so bad that I don't trust the names and/or mission statements of organizations.