Articles by Kurtzleben, Danielle
Shifts focus from big expenditures to bus tour.
Healthcare, gun control measure round out top three.
Allied outside groups also make final push to Election Day.
Controversial GOPer contributed $750,000 more to other campaigns than any of his colleagues.
Senate Democrats spend third most last week.
Healthcare law, cost of living adjustment also drive interest.
Small business jobs bill, continuing resolution round out top three.
House party committees spent more than $16 million last week.
Others dropping by include Arianna Huffington, Whoopi Goldberg.
Group's devotion to self-determination seen as a boost to those pushing for D.C. voting rights.