Republicans had a very good Nov. 4; this much we know. But merely looking at the GOP's likely nine-seat gain the Senate and its double-digit gains in the House doesn't really do its wave justice. While the GOP is likely to control 54 percent of all Senate seats and 56 percent (or so) of the House come January, it also will now control more than two-thirds of state legislative chambers across the country -- as in nearly seven in 10.   Source: Aaron Blake , washingtonpost.com