White House Deputy Chief of Staff Karl Rove (L) and U.S. Senator Sam Brownback (R-KS) talk before before remarks by U.S. President George W. Bush against federally-funded stem-cell research during an event at the White House in Washington July 19, 2006. Bush on Wednesday used his first veto to block legislation expanding embryonic stem cell research, which was heavily supported by Brownback. REUTERS/Jason Reed (UNITED STATES)