Some days I think they do it on purpose

TPM:

In what amounts to an epic constitutionality #fail, Senate Democrats may have blown their chances to see their food safety bill signed into law.

The U.S. constitution requires that any revenue-raising bill must originate in the House of Representatives. To honor this provision, the Senate often finds a discarded old House bill, strips it bare, and uses it as a "shell" and passes it back to the House.

They somehow forgot to do that this time.

Somehow...