ALEC was around long before the Koch brothers had anything to do with it.
"More than 40 years ago, a small group of state legislators and conservative policy advocates met in Chicago to implement a vision:
A nonpartisan membership association for conservative state lawmakers who shared a common belief in limited government, free markets, federalism, and individual liberty. Their vision and initiative resulted in the creation of a voluntary membership association for people who believed that government closest to the people was fundamentally more effective, more just, and a better guarantor of freedom than the distant, bloated federal government in Washington, D.C.
At that meeting, in September 1973, state legislators, including then Illinois State Rep. Henry Hyde, conservative activist Paul Weyrich, and Lou Barnett, a veteran of then Gov. Ronald Reagan’s 1968 presidential campaign, together with a handful of others, launched the American Legislative Exchange Council. Among those who were involved with ALEC in its formative years were: Robert Kasten and Tommy Thompson of Wisconsin; John Engler of Michigan; Terry Branstad of Iowa, and John Kasich of Ohio, all of whom moved on to become governors or members of Congress. Congressional members who were active during this same period included Senators John Buckley of New York and Jesse Helms of North Carolina, and Congressmen Phil Crane of Illinois and Jack Kemp of New York."