Rep. James Comer, a multimillionaire farmer, boasts of being one of the largest landholders near his rural Kentucky hometown, and he has meticulously documented nearly all of his landholdings on congressional financial disclosure documents – roughly 1,600 acres in all.

But there are six acres that he bought in 2015 and co-owns with a longtime campaign contributor that he has treated differently, transferring his ownership to Farm Team Properties, a shell company he co-owns with his wife.

Interviews and records reviewed by The Associated Press provide new insights into the financial deal, which risks undercutting the force of some of Comer’s central arguments in his impeachment inquiry of President Joe Biden. For months, the chairman of the House Oversight committee and his Republican colleagues have been pounding Biden for how his relatives traded on their famous name to secure business deals.