Since the democrats did so well will the stock market go down today?

It will most likely go down today because the uncertainty's in the Senate, however, it will rebound and start going up again shortly as business like to have a divided house and White House as measures limiting them on business deals do not get passed. There have been lots of articles in the business news papers and magazines about this scenario. The best one was in US News and World Report. Another in the Wall Street Journal.

The stock market will probably go down, but more because of the uncertainty with the US Senate.

If anything, markets like a divided government (Dems in Congress, Reps in White House) because no prohibitive business legislation gets adopted. Business loves it. There was a well written article in Yahoo! Finance about this issue yesterday - written by a Senior Analyst from Prudential.

yep, the stock market is based on republicans

whole economy will take hit if senate goes that way as well. Will worsen real estate fall so plenty of pain for all.