... a possible anti-Trump meme

Donald Trump stumbles on David Duke, KKK
By Eric Bradner, CNN
Sun February 28, 2016

"Just so you understand, I don't know anything about David Duke, OK?" Trump said.
...
"I don't know anything about what you're even talking about with white supremacy or white supremacists," he said. "So I don't know. I don't know -- did he endorse me, or what's going on? Because I know nothing about David Duke; I know nothing about white supremacists."

No, I'm not talking about Trump's appeal to white sumpremacists, or their endorsement of him.

I'm talking about his willful, fully acknowledged ignorance about ANYTHING!

"I mean, Seventh-day Adventist, I don't know about. I just don't know about."

I'm not going to dig through any of Trump's past rants to verify this, but I'd bet that he has stated, "I don't know...!" frequently...
... most likely in response to uncomfortable and discomfiting questions like the one above.

Maybe someone with more stomach than I could dig through published interviews & videos and put together a nice 30-second TV spot:

"I don't know... "

"I know nothing about..."

"I don't know... "

"I know nothing about..."

"I don't know... "

You get the idea.