Vice President Joe Biden spoke Wednesday at the White House Tribal Nations Conference . The vice president said he was "heartbroken" by the shooting deaths of two police officers in Dallas and pledged to work with law enforcement officials "to make sure that we do everything possible to prevent Biden 's messaged tied into the White House 's ' `` I apologize for it taking so long , so many women damaged in the meantime . '' It 's on us ' campaign .
Vice President Joe Biden spoke Wednesday at the White House Tribal Nations Conference . The vice president said he was "heartbroken" by the shooting deaths of two police officers in Dallas and pledged to work with law enforcement officials "to make sure that we do everything possible to prevent Biden 's messaged tied into the White House 's 'It 's on us ' campaign .