Link? To what? Soros laid out the plans for the North American Unions at the World Economic Forum in 1995.
Soros Foundation is a funder of the Log Cabin Republicans.
What do you want a link to? The World Economic forum?
Open Society Institute?
Soros Foundation?
Open Secrets?
A link providing evidence for your claim that to get the endorsement of the LCR, a candidate needs to "contract" to vote for the North American Union (whatever that would even mean).