Where did she pull that out of?
Even Ted Kennedy probably didn't have 400 bills signed into law.
And he was the "Lion of the Senate".
No idea...this is what Wikipedia said:
While a member of the U.S. Senate, Clinton sponsored 31 pieces of legislation,[dubious – discuss] including 21 bills, 9 amendments, 33 Senate Resolutions, and 21 concurrent resolutions.[11] Fourteen of her Senate resolutions were passed, expressing the Senate’s views on policy or commemorative questions.[11] One of her concurrent resolutions—supporting National Purple Heart Recognition Day—passed both houses. Three [12] became law
Note Wiki said the number 31 is dubious... No idea what they were—don’t care, but the THREE THAT PASSED WERE RENAMING LOCATIONS...
In other words, her Senate career was total BS—just a stepping stone to run for Pres...the picture of her nearly asleep in the Senate chamber comes to my mind...