I said yesterday it wouldn’t be long before Obama’s Jokers posters started popping up across the country.First, Claire McCaskill.Now, Nebraskans have Jokerized Ben Nelson. (Or rather, he Jokerized himself, didn’t he?)Reader Tim e-mails the photos and this message:“Saw this in small town Nebraska today less than 50 miles from Ben Nelson’s home town. This is pretty surprising to me because this is strictly an agricultural area. Nelson has consistently catered to the agricultural interests in Nebraska and so is pretty popular among the farmers and ranchers in the area. Federal subsidies are a huge percentage of area farm income. But...