re: Kerry's votes???
This site would have some use if they told you how they derive a No or Yes for the whole year. There is more than one bill per year and how much of any one bill do you have to disagree with to have it become a No? They don't seem to count bills you sponsor, cosponsor and amendments to the bills that support NASA and space.
BTW, it makes sense for people putting together such stuff to tell what party if any they belong to.