Thanks. I wasn't seeing it, because as your second post shows, he was talking to police and not black leaders.

Here's the full context:
The president met for nearly two hours with leaders of eight law enforcement groups Monday, informing them that he considered the killing of the five police officers in Dallas on Thursday “a hate crime” and that he would work actively to serve as an intermediary between minority activists and police.

“I’m your best hope,” Obama remarked at one point, according to the Fraternal Order of Police’s James O. Pasco, one of the meeting’s attendees.

“I don’t disagree,” said Pasco, who has criticized aspects of the administration’s gun-control policy. “We’re all in this together.”

Being the "best hope" does come across as arrogant, but it may be true. Who else out there is going to be an "intermediary between minority activists and police." as effectively?