I will be flying home from LHR to MSP. My route will be British Airways from LHR to ORD and then switching over to Delta for my ORD to MSP leg. I plan to check bags at LHR.

Since I will reenter the USA at Chicago and will personally clear customs there, does that mean I will have to take delivery of my checked bags in Chicago to clear customs and then seek out a Delta gate agent to recheck my bags for my Delta flight to Minneapolis? Or is there a process whereby my bags can stay checked to my final destination yet still be inspected at either ORD or MSP without me?