Here are two related articles on the subject of the NAU that describe the globalist views of both parties.

This should be a good example that it doesn't matter which party someone may vote into office, the agendas of either one is a facet of globalism. There are links (although Wikipedia...ugh!) to definitions of contrasting views within the same party, and keys to recognize them.

http://www.thenewamerican.com/index.php/world-mainmenu-26/north-america-mainmenu-36/6647-faux-conservatives-defend-the-north-american-union

http://www.thenewamerican.com/index.php/world-mainmenu-26/north-america-mainmenu-36/6646-internationalists-renew-call-for-a-north-american-union