Feinstein and Specter propose a ban on funding for all eavesdropping outside of FISA
"A generally reasonable -- and potentially quite significant -- bill was jointly introduced last night by Senators Arlen Specter and Dianne Feinstein. The essence of the bill is to mandate that any and all eavesdropping on U.S. persons on U.S. soil fully comply with FISA (which is really another way of saying that the Bush administration is required to comply with the existing law called FISA), and it also bars the use of any federal funds for any eavesdropping programs which do not fully comply with FISA...read on"
