QUOTES BY Cory Gardner
If you look at the Constitution, the two clauses of the Constitution make it very clear the president shall nominate, and the Senate shall provide advice and consent. It's been since 1888 that a Senate of a different party than the president in the White House confirmed a Supreme Court nominee.
Now, President Obama has to make a decision. He can either propose a nominee who can win over the majority in the Senate or defer his choice to the voters, who in November will elect a new President and a new Senate, which will be responsible for confirming a nominee who will provide balance to the Supreme Court.