In other news it looks like the Senate ahs a 50-50 chance of going republican according to the TV.
Not likely. On the surface, it looks as if the Republicans can win it simply because the Dems defend many more seats, however, many democratic incumbents are quite popular. Take Sherrod Brown (D-OH) and Amy Klobuchar (D-MN) for example, they sit in so-called swing states and it's unlikely either of them will lose. Especially so in Klobuchar's case. The Democrats also have a shot at retaking Massachusetts's seat from Scott Brown, and Angus King (I-ME) will most likely take Olympia Snowe's seat. Nevada's senate seat is also a potential democratic pickup, and after Pete Hoekstra's epic screw up (an extremely racist ad against Debbie Stebenow) it looks like the democrats may hold Michigan's seat as well.
All that, or I'm completely wrong and am being too optimistic.
You aren't overly optimistic about these races but they aren't the ones to be worried about. Neither of those are considered among the democratic vulnerabilities.
The top democratic vulnerabilities are North Dakota and Nebraska, where the incumbents are retiring and the democrats are severe underdogs. Their other vulnerabilities are places where they're behind in the polls like Montana, Missouri and Wisconsin. Either the democrats are going to have to make up their deficits in these races or they're going to have to make up for loses here with multiple pickups in other places while holding the open seat in Virginia which is a dead heat.
Most likely several races go together. If things break even slightly in favor of the democrats, they'll hang on, narrowly. If things break slightly in favor of republican's, they'll take a narrow majority. If the needle doesn't budge, it stays a tossup. So I'd say that 50-50 is a pretty good assessment.