As I see it, this is because nobody inside the Obama campaign - including the candidate hisself - knows the proper way to fly the American flag. Likely because they never have done so. Simple as that. They think it more important to “blend” the flag “stylistically” with Obama’s shirt than it is to show it properly, illustrating the problem with Obama’s candidacy in a revealing fashion.
Bingo. When they usually see it--it is usually crumpled up on the floor after being stomped on.