WASHINGTON - JUNE 20:  U.S. President George W. Bush hugs Kaitlyne McNamara of Middletown, Connecticut, who was born with Spina Bifida after he spoke on embryonic stem cell research during an East Room event June 20, 2007 at the White House in Washington, DC. Bush has vetoed a bill to fund embryonic stem cell research with federal money, the second time Bush vetoed a similar bill that supported the research. Getty Images logo Getty Images 29 months ago

WASHINGTON - JUNE 20: U.S. President George W. Bush hugs Kaitlyne McNamara of Middletown, Connecticut, who was born with Spina Bifida after he spoke on embryonic stem cell research during an East Room event June 20, 2007 at the White House in Washington, DC. Bush has vetoed a bill to fund embryonic stem cell research with federal money, the second time Bush vetoed a similar bill that supported the research.