I think everyone's probably noticed by now that Republicans hate pork - not the meat, but the spending practice. What counts as pork is subjective, but if a Democratic senator wanted $35 billion to spend on some project in their home state, I'm guessing they would place it squarely in the "pork" category no matter what it was.
But when Richard Shelby wants $35 billion to be sent to Alabama, it's not pork. No, it's a "lucrative US Air Force tanker deal". The fact that he hasn't gotten it yet isn't an effort to curb wasteful government spending, it's an "unaddressed national security concern", and so he is totally justified in what amounts to throwing a tantrum.
I wish I could say this surprised me, but it's just the latest example of the contradictory positions held by people on the right. Conservatives of all stripes oppose government intrusion into the lives of private citizens, while also opposing equal marriage. They support "freedom" and "liberty" and then throw a shitfit when we dare to suggest giving terrorists a trial by jury, as if they think any jury or judge might acquit them. The same people who propagate racist myths about "welfare queens" turn around and express their outrage that abortion rates are significantly higher among women of color. Chuck Grassley opposes both a national healthcare system and "big government", and then tells people to go work for the government if they want a good insurance plan. John McCain thinks that we should respect the military's judgment on all of their policies, except when they disagree with him. And the entire Republican party is totally opposed to wasteful spending, with the definition of "wasteful" changing as it suits them.