Republican Senate could circumvent Obama vetoes
If Republicans take control of the U.S. Senate in this year's elections, it will be, as Vice President Joe Biden might put it more graphically, a big deal.
Last week, elections handicapper Nate Silver gave a 60 percent probability that the Republicans would gain at least the half-dozen seats required for a majority. This wasn't news to top party strategists. But it produced a palpable panic among Democrats along Pennsylvania Avenue, from the White House to Capitol Hill.