That's nothing new and I'd say my capacity to function in this job if the doctors ever conclude I can't, obviously, I'd be the first to step forward and say so.

CNN: Vice President on his latest heart problem

The doctors have assured me there's no reason why either the procedure or the device that's being implanted should in any way inhibit my capacity to function as the vice president.

CNN: Vice President on his latest heart problem

In contrast, the executive branch has articulated a strong and highly specific reason for withholding the documents at issue: Forced disclosure to Congress of internal deliberations concerning how best to interact with Congress would undermine the executive's capacity to function as a co-equal branch.

CNN: Why contempt case against Holder may be doomed