Last night, he announced on Revolution Radio that he will announce in January or February that he will run for the Presidency of the United States. Furthermore, he has switched his party registration to Republican. (Interesting factoid: though he founded the Rent Is 2 Damn High Party and ran on it's line, he was a registered Democrat. The Rent Is 2 Damn High Party actually had only 3 registered party members.)
Below is the video of his announcement. McMillan begins his announcement at the 49-minute mark. Enjoy.
And for old time's sake: