Some perspective is in order on the nomination of Samuel Alito to the US Supreme Court.
From 1994 to 2005, the nine justices comprised of three conservatives, two moderates, and four leftists. Seven were appointed by Republican Presidents, and two were appointed by a Democrat, Bill Clinton. Both of those two, Breyer and Ginsberg, are leftists.
So seven Republican Presidents appointed three conservatives, two moderates, and two leftists, while a Democrat reliably appointed two leftists, not even any moderates.
Which party appears to place more importance on ideology on a nominee, rather than sheer judicial qualifications?
Now that Alito, a conservative, is replacing Sandra Day O'Conner, a moderate, the balance of the Supreme Court is like this : four conservatives, one moderate, four leftists.
This is hardly an overwhelming bias to the Right. It is merely a removal of the tilt to the Left that has existed for so many years. Given that conservatives outnumber liberals in the United States population, this is still not a reflection of the general population.
Prediction : The American public will continue to demand a rightward shift in the Supreme Court, expecting one of the four leftist Justices to be replaced with a conservative, when the time arises. The actions of Congress will reflect this, no matter how much pressure far-left groups exert.
Update : Dick Morris on Why the Left can't sink Alito.