the yes we can video/speech

I assume this is Will.i.am's project, protest song chord progression with BU pop music sensibilities, but I want to know who wrote the speech - it was delivered in New Hampshire.

Very well done all around, except for that little violin bit just thrown in there for no good reason.

I do point out that this a great speech, which reminds me of my speech writing and how decidedly not good at it I am compared to this.