Jim Geraghty has been reading Jodi Kantor's book The Obamas. Look what he found on page 26:
Initially, Barack had tuned out the presidential talk, too. But he was just as disappointed with the U.S. Senate as he had been with the state senate – he had gone to Washington to do big things, but he was a junior member of a slow, rule-bound, Republican-controlled body. “Shoot. Me. Now.” he wrote to an aide, in the middle of a particularly long-winded oration. (The speaker was Senator Joe Biden.)
With what Biden has said about Obama over the years, knowing that these two guys are not fans of each other means they have at least some sense, eh?