Republicans will be hurt more politically by rejecting a moderate nominee they already voted to confirm once before nearly unanimously, than by rejecting a more liberal nominee.
That I believe is President Obama's thinking.
Right. Yeah, I only meant that after we clean up in November
(I know I'm being a bit overconfident here ), we fill every new open seat that comes up with ultra-liberal justices with absolutely zero consideration given to Republicans. Nuke the 60-vote cloture requirement and ignore their complaints. Stack the appellate and district courts with very young, qualified liberals as well. Another 4 - 8 years of a Democratic WH and the entire federal judiciary will be a conservative's worst nightmare come true.
As I understand it, that judge, Jane something from Iowa, is being seemingly strategically considered to both put pressure on Republicans/Grassley, but also to hurt him in Iowa for a potential challenge to his seat this November.
At any rate, I trust Obama to make the right decisions in this case. I know he will want to inflict maximum pain on them as much as anyone else for probably both personal reasons and to increase our chances in November.