President Obama said we live in a country that respect free speech and to respect the protestor because he may have served in the military and is elderly. That's good what he said. He also told the crowd to vote instead of booing. I think how he did was better than Donald Trump.
On the other hand, Donald criticized President Obama as screaming when he was just being loud! See this video here: https://www.facebook.com/NowThisElection/videos/1331013263596827/ How is that screaming? I don't see that as screaming. President Obama was just being loud. Donald was just as loud or louder than President Obama in his rallies ! He has ordered protestors to be taken out many times in his rallies whereas I don't think President Obama has done that yet!