I've never seen this one discussed before.
I think he was an ENFP.
- He was very linguistically gifted
- Very idealistic, though not very resilient in following through
- Brought a bunch of idiosyncratic ideas to many different jobs
- He seemed to function via personal indignation and/or "championing" of Latin Americans
- He had this charismatic presence a la Bill Clinton
- He was notoriously inconsistant in his principles a la Bill Clinton
and so on...