Neither initiative says anything about “within existing revenue” as he stated. I-728 says it will be funded with "SURPLUS REVENUE."
Sorry, we’re out of “surplus revenue.”
I-732 does not even contain the word “revenue.”
From I-728:
AN ACT Relating to public education and directing surplus state revenues to provide additional resources to support high standards of achievement for all students through class size reductions; extended learning opportunities for students who need or want additional time in school; investments in educators and their professional development; dedicating unrestricted lottery proceeds to schools; and authorizing school districts to receive funds from the state property tax levy; amending RCW 67.70.240, 84.52.067, 43.135.035, 43.135.045, and 28A.150.380; adding a new section to chapter 28A.505 RCW; adding a new section to chapter 84.52 RCW; creating new sections; and providing effective dates.
The purpose of this act is to improve public education and to achieve higher academic standards for all students through smaller class sizes and other improvements. A portion of the state's surplus general fund revenues is dedicated to this purpose.