Ronald Reagan's First Comic Book Appearance?

Though today, the DC Universe shies away from the presenting real politicians in its stories, it wasn't always like that. JFK appeared a number of times in the early 60s, for example. One of the most represented presidents in the history of comics was Ronald Reagan however, who showed up, at both DC and Marvel, a heck of a lot. I've got half a mind to tag this post and make it a recurring feature, because there's just that much material throughout the 80s. But what was Reagan's very first comic book appearance? Well, barring any of his films getting a comic adaptation I'm not aware of, it must be this from Brother Power the Geek #2, 1968:

As Governor of California, Reagan brands Brother Power a threat!

In the end, the true culprit is found and brought to his office (because that's what would happen in that situation #realpolitik), but it's too late...

...Brother Power has already been launched into space, there to remain forever because his book was already cancelled.

Is there a demand for more Reaganocomics? I'd be happy to oblige if I can.