However, the law that bars that activity is very specific and only disallows direct contact with current members of the U.S. Congress for a lobbying-related purpose.
There are, however, a number of ways around that, some of them even being legal - lobbying indirectly (i.e. - behind the scenes organizing), "advising" other lobbyists, lobbying at the state level, etc.
It seems that former Rep. John Shadegg (R-CD3) has chosen the last course.
From KSWT in Yuma -
The Goldwater Institute has named retiring U.S. Rep. John Shadegg of Arizona as a senior fellow.
The libertarian-leaning group says Shadegg will help fulfill its mission of economic freedom and limited government by sharing his experience and expertise with other scholars.The Goldwater Institute isn't much more than a generic corporate lobbying group working under the guise of a "think tank". One of their big targets recently has been health care reform, something that has been at the top of Shadegg's personal hit list, so they should be a good fit.
Shadegg is a plaintiff in the Phoenix-based group's challenge to health care overhaul passed in Washington last year.
My expectation (and it's only that, an expectation. I'm not exactly a confidante of any of the people I'm about to name):
Shadegg will be with GI for a couple of years before making the "official" move to the lobbyist ranks. The one thing that looms on the horizon that could possibly change the plan is if Jon Kyl doesn't run for reelection to the U.S. Senate next year (whether to retire, run for VP, or something else). In that event, Shadegg will be one of the many R names looking into sliding into that spot.
For the record - right now, I'd bet on Kyl running for reelection. However, I reserve the right to change that at any time when more info becomes available. :)