Thank you Ayumi! I don't like Hillary, but she is the only option now that her rival is the tremendously horrendous Trump. The cartoon is from Rick Geary.
And the stamps, the stamps! They are wonderful!
These belong to a series called Honoring Extraordinary Heroism: The Service Cross Medals, issued for Memorial Day, remembering those that have received medals for extraordinary, often life-threatening service.
You can see the individual, bigger and more detailed pictures of the cartoon Hillary postcard, and of the stamps, below.