Oh, that didn't happen yet. But yeah, you posted there is pretty bad.
I only read the first issue so far, and all that's happened is Joker stole a cruise missile and sold it to some terrorists.
Crap. Oops. I missed the "first issue" bit. Sorry about the spoilerriffic post.
There's a secret part of me actually likes the crazy over-the-top nonsense inherent in the premise though. It's sort of like when the U.S. elects Lex Luthor, it's got something of an interesting idea in it. But the Joker? Maybe this was before he was well-known as a complete liability.