Crooked Donald Trump
Attach to your bumper by using double-stick tape on the backside around all the edges. Or you can use a spray adhesive--but spray adhesive is more difficult to remove later.
To protect the front side against the weather, you can use clear packing tape on top.
The New York Times article of October 3, 2016, demonstrates how the little people (that's you, sucker) pay the taxes for billionaires like Donald Trump. He's laughing at you.