Took a quick look around the web, and ran across this simple site:
http://independentresearch.us/ProgressiveCapitalGainsTax/ Bunty Sikka is apparently a computer engineer with a company in San Jose. I found no other reference to his political activities.
Other references were a few mentions in forums and some articles suggesting doing away with special treatment of capital gains entirely, which, as I mentioned in my previous post, seems to me to be much more problematic politically. It seems as though this idea needs a little more looking at.