The e-mail inflates Obama's numbers by counting his cosponsored bills, but Sarah Binder, a fellow at the Brookings Institution and an expert on legislative politics, tells FactCheck.org that often "cosponsorship does not require a commitment of time, energy or resources – let alone the political or policy ingenuity that might generate a bill idea in the first place." Tallying sponsored bills, says Binder, is "a better metric of a senator's agenda, efforts and interests."

Clinton has been in the Senate a little more than seven years; Obama, a little more than three. Using the numbers above, we calculate that Clinton has been the sole sponsor of a few more bills and resolutions per year – 51, to Obama's 43. And she has steered twice as many through the Senate and almost four times as many into law per year, on average, as Obama has.

from THOMAS.gov, the Library of Congress' database of legislative information