see more

U.S. President Barack Obama, left, walks towards the Rose Garden with his nominee for the Supreme Court, Merrick Garland, chief judge for the U.S. Court of Appeals for the District of Columbia Circuit, center, and Vice President Joseph 'Joe' Biden at the White House in Washington, D.C., U.S., on Wednesday, March 16, 2016. The nomination escalates a battle that will dominate the final 10 months of Obamas presidency, as the White House is locked in an unprecedented dispute with Senate Republican leaders who have pledged to ignore the presidents choice. Photographer: Joshua Roberts/Bloomberg via Getty Images

U.S. President Barack Obama, left, walks towards the Rose Garden with his nominee for the Supreme Court, Merrick Garland, chief judge for the U.S. Court of Appeals for the District of Columbia Circuit, center, and Vice President Joseph 'Joe' Biden at the White House in Washington, D.C., U.S., on Wednesday, March 16, 2016. The nomination escalates a battle that will dominate the final 10 months of Obamas presidency, as the White House is locked in an unprecedented dispute with Senate Republican leaders who have pledged to ignore the presidents choice. Photographer: Joshua Roberts/Bloomberg via Getty Images