Since you continually bring up the race of both, today Zimmerman, as part of your hate-gossiping, It was appropriate to respond of GZ's actually race.
You aren't very knowledge of realty, only illusions as you wish them to be.
President Obama's father is in fact Arabic Kenyan, not black Kenyan. Almost his entire family line on his father's side consists of Arabic males (which is where he receives his y chromosome from). The one black Kenyan ancestor in his family line is one generation removed. - meaning Barrack Obama is 1/14th black. The chance of him being the male who passed on his y chromosome is too low to allow Barack Obama yo consider himself black as he would have had to "compete" with 7 other males. Therefore, Barack Obama is in fact Arabic American vastly more than African American, but of course mostly he is European American - and where his blood relationship to Dick Cheney comes from.
Arabic and Kenyan are not races. Those are ethnic labels. If his mother is white and his father is Kenyan, then he is white and white unless his father is a Black Kenyan. However, his father was not. His father is of Arabic ancestry - or to be exact 6/14thths Arabic and 1/14th "black ," and 1/2 "white."
To be specific, Barrack Obama racially is: 1/2 White European
6/14th Arabic
1/14th "black"
George Zimmerman is 25% "black" or 1/4th and Obama is 1/14th, meaning George Zimmerman is more than 3 times as "black" as Obama. So actually GZ is far more honest saying he is black than is Obama. But, then, Obama is "a proven liar" - to quote you.
Give how often you and many other Zimmerman haters focus on the race of those involved, it seemed appropriate to clarify the race of both to you. Of course, I expect you to entirely ignore it because it contradicts your illusions and hate-gossip.