http://www.huffingtonpost.com/2010/04/10/obama-emboldened-for-anot_n_533017.htmlHere's the start, but it's worth reading all the way through.
WASHINGTON — Emboldened by success the first time around, President Barack Obama is likely to pick the Supreme Court nominee he wants and let the confirmation fight proceed from there, putting huge emphasis on a justice who would bring a fight-for-the-little-guy sensibility to the job.
Politics will certainly play into Obama's calculus: He no longer has the votes in the Senate to overcome the delaying tactic known as the filibuster, and a minority Republican Party in fierce opposition to Obama's agenda has little incentive to hand him a win just months before House and Senate elections.
But Obama's strategy worked when he chose Sonia Sotomayor to replace Justice David Souter last year – announce the criteria he deems the most vital for a nominee, vet the nominees with no embarrassing gaffes or leaks, and pick the one with whom he feels the most comfort.
Confirmability was a factor then, not a driver. Expect much the same now.