Yes, alot of people do infact over here in the US. I am in a state where Obama's mustered up a lot of support amongst college students, (Michigan and Wisconsin), infact I just saw a Green party socialist battle a libertarian at the University of Michigan yesterday :) The general perception is that grandma Mccain will drag along this war like the way Bush has been doing so.
Exactly. Besides Obama/Biden have supported aiding Pakistan (non-militarily) which will help at grass-roots levels. But such fund-raising for one candidate might provide fuel to grandpa saying "see, anti-American people are collecting funds for Obama".