PRESIDENTIAL SUPPORT President Barack Obama speaks at the launch of "Joining Forces," an initiative to raise awareness about military families, at the White House, April 12, 2011. First Lady Michelle Obama and Dr. Jill Biden, wife of Vice President Joe Biden, spearheaded the initiative and spoke at its launch. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 941481-S-TOI37-084.jpg Photo Gallery