There is talk about politicians not wanting Obama to elect a new Supreme Court Justice due to the untimely death of of Antonin Scalia. There is also talk about only having 8 seats filled for so many months in the supreme court as being a major problem based on how the system is supposed to work.
(My question is split up into a few questions but I think they all are really asking for the same but this way puts clearer context around what I'm asking I think)
Why would it matter whether it be a Democrat or a Republican president that appoints a new Justice? Could one or the other appoint a Justice in a way that benefits their party more than the other at this Supreme Court level? How important is party affiliations of justices?
These are judges of the highest court in America and to me I would think a judge should be unbiased and bipartisan in a position like this. Otherwise, there could be corruption at this level.