But Bass and an allied super PAC are only spending about $2 million combined on TV, outpaced by Caruso and his allies by more than 13-to-1. Kevin de León, a Los Angeles city councilmember and a former state Senate leader, is also up on TV, but he’s lagged behind Bass and Caruso in public and private polling.
Caruso’s big spending fits into a broader set of tests for the left across the country this election year, with super PACs — and…