It seems quite possible, even likely, that California’s historic Proposition 19 to legalize adult possession and growing of marijuana will actually pass in November. The arguments against the ballot measure—both its alleged socially damaging effects and its alleged unconstitutionality—are weak and unconvincing to anyone not already prejudiced against pot.

Polling in support of the measure is consistently at or near 50 percent (though often within the margin of error in either direction), with the latest from the Public Policy Institute of California clocking it at 52 percent in support. Opposition is out there, publicly represented by a rather goofy reverend with a checkered past, but that opposition has been so far restrained and not willing to spend much money. The most prominent anti-19 campaign, Public Safety First, has spent just under $200,000 this year and is sitting on only $54,000 right now.

reason.com