Congressman Charles Rangel (D-N.Y.) announced in a press release that he has been ranked the "most productive member of Congress" over the past ten years, noting that 31 of his 290 bills have been signed into law by either President Bush or President Obama.

The analysis was performed by Saint Louis-based startup TrackBill, which Rangel advertises in his release as a "powerful tool used by Fortune 1000 companies, prominent lobbying firms, leading advocacy groups and influential non-profits to keep informed of legislative activity in Congress and all 50 states."

Whether Rangel's 31 measures that were signed into law make him the most productive, however, is a matter of perspective. Twelve of Rangel's bills were largely extensions of expiring policy, three named post offices and federal buildings, and one bill added a day to the list of days on which the flag should be displayed.

The most substantial legislative achievement by Rangel is the Patient Protection and Affordable Care Act, better known as Obamacare.

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