"The protests are being embraced, the protests are being encouraged," he said.
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The senator said the shooter alone is to blame for the deaths of two New York officers.
Rep. Gregory Meeks said de Blasio and Holder have been trying "to bring the city together.”
Cornell William Brooks said criticism of New York's mayor and Eric Holder are unfair.
Obama said he recognizes that "most Americans have good intentions."
"We reject any kind of violence directed toward members of law enforcement," the family said.
Two New York officers died in ambush-style shooting while sitting in their patrol car.
Cuba policy on tap for Sunday shows with commentary from the president and Sen. Marco Rubio.
President Obama and the first family have begun their 17-day retreat.
The high court cleared the way for same-sex marriages to start in Florida next month.