These "Obama Is a Socialist Joker" posters are apparently the first-ever examples of Republican Street Art. Baby steps! On balance, the "Heroic Obama" street art meme is still dominating. A sample:

So far the wingnuts are losing the Obama street art war, handily.

In Copenhagen. Via Per Corell.

U Street in DC. Via goimardantas.

In Jersey City. Via wallyg.

Shepard Fairey, museum-style. Via KwangSoo.

Shepard Fairey, street style. Via LoisInWonderland.

LES, NYC. Via tedjohnjacobs.

Italy is on some crazy shit. Via Max IK7TOE.

In Spokane. Via gerikasher.

[Joker pic via Newsbusters]