…and the Democrats have so far been doing very well at fundraising. (See for example Democrat e-mail fundraising, Super PAC fundraising, Very large donors, and another piece on Online fundraising.) One factor that works to the advantage of the Democrats is that there are quite a few Left-leaning celebrities who are willing to put their high visibility to work for the party: see for example the work of George R R Martin (the fantasy & science fiction writer) on behalf of Thomas Udall.
In addition to the advertising that they can explicitly buy with the money they get from contributions, the Democrats also have the advantage of overwhelming support from the media–indeed, a considerable % of news and editorial coverage consists basically of unpaid advertorials for Dem positions and Dem candidates.
If you care about the future of the United States, and are not happy with the “progressive” approach to government, as exemplified in the administration of Barack Obama, please consider maxing out your political contributions and doing it soon. If the Democrats keep control of the Senate, and especially if they are able to regain control of the House, the next two years may be very dark indeed, and the country may well slide into a place from which it will be very difficult to recover.