Corporations and some of the wealthiest Americans have spent more than $1 billion in just 11 states.
The measures would account for about a third of what it would take to completely reopen the government.
The debate over increasing tax revenue has persisted in the weeks following the deal to avert the "fiscal cliff." That's good and bad news for both Republicans and Democrats.
Some Democrats don't think Washington has a spending problem, while others say it does. Adopting the former position is a politically risky proposition.
Reps. Allen West (R-Fla.) and Michele Bachmann (R-Minn.) each spent more than $100 per vote.