Pray for Trump.
When you can’t talk about something directly, God provides you a route. In this instance, God showed him the method to castigate the political leader. This may not be amusing to someone who doesn’t understand what Psalm 109:8 means in its entirety.
The name may be a reference to something. The sticker above that reads “Pray for Trump” adds to the amusement. Search this on Google yourself to see if it’s true. You’ll be shocked at what you find when you do so.