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NEW YORK, NY - DECEMBER 08:  San Francisco, California Mayor Edwin Lee speaks during a press conference after attending New York City Mayor Bill de Blasio's  Mayor's summit on immigration reform on December 8, 2014 in New York City.  The summit focused on how cities can best utilize President Obama's executive action on immigration reform.  (Photo by Andrew Burton/Getty Images)
NEW YORK, NY - DECEMBER 08:  San Francisco, California Mayor Edwin Lee speaks during a press conference after attending New York City Mayor Bill de Blasio's  Mayor's summit on immigration reform on December 8, 2014 in New York City.  The summit focused on how cities can best utilize President Obama's executive action on immigration reform.  (Photo by Andrew Burton/Getty Images)

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San Francisco Mayor Ed Lee speaks on DACA

San Francisco Mayor Edwin M. Lee speaks about the importance of the DACA program.

San Francisco Mayor Ed Lee speaks on DACA

San Francisco Mayor Edwin M. Lee speaks about the importance of the DACA program.