Physician here - going back to the nature of this tumour, there's very little that's good about the information released so far. A few points:
1) Ford supposedly had some sort of appendiceal "tumour" resected in 2009, along with what sounds like a partial cecal resection. I have no idea what exactly this was since we have nothing more than Rob's description. It doesn't sound like any kind of malignancy, but tumours of the appendix aren't common and when they do occur can be very aggressive.
2) If this new "fair-sized" tumour is colorectal in origin, it begs the question of why he wasn't scoped. That, at least, is my understanding, as the reports suggest only imaging - and an image-guided biopsy. Colonoscopy would be the first choice to get tissue but it's possible it was attempted and it wasn't successful. And if a colonic mass is big enough to be seen on CT, it's going to be at least locally-advanced. Since Ford is now admitted to a surgeon who does colorectal exclusively, it stands to reason that's where this thing is, but it also probably isn't a "normal" colorectal cancer.
3) While a biopsy is conventionally understood as determining whether a tumour is "benign" or "malignant", usually we can tell that from imaging alone. What a biopsy provides is information about the type of tumour, and the delay in getting path results come from various special stains, immunofluorescence, and assessment of molecular markers that come with a more comprehensive study.
4) Overall I'm still not sure what's going on, but it's unusual to present with pain in the absence of obstruction or perforation. If either of those had happened, he'd already have gone to the OR. But with his younger age, prior appendiceal something, and symptoms, I'd wonder about a peritoneal malignancy either primary or secondary. It could also be a neuroendocrine tumour, some of which can be very aggressive and fast growing. Either way, once the biopsy results are back (along with whatever kind of "lung biopsy" he had) his case will go to a multidisciplinary tumour board and they'll decide on a plan.
None of this is compatible with an election.