[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/04/21/art.obama.0420d.gi.jpg caption ="President Obama has been reaching out to potential candidates for the pending Supreme Court vacancy."](CNN) - President Obama is expected to meet with key Republican and Democratic leaders Wednesday to discuss a replacement for retiring Supreme Court Justice John Paul Stevens.
Obama has been privately reaching out this week to candidates for the pending Supreme Court vacancy, an administration source said Tuesday.
The president's conversations with potential candidates were conducted over the phone. Specifics of the discussions were not disclosed by the source.
Stevens announced he would retire shortly after the court's current term ends in late June.
White House officials have said they expect the president to pick his nominee by early May.