In general, I’m of the mind that it’s not really “wasting” money to spend a lot in one place when the money is better spent elsewhere. If Dems are burning money on a hopeless race in Kentucky just because they despise Mitch McConnell it doesn’t mean that money was really on offer for a sleeper race in another part of the country. I also think campaign dollars are fairly elastic. That person who’s given candidate A $100 probably has another $100 they can give to candidate B if that other candidate catches their fancy. But TPM Reader HS makes a decent point about a possible bonfire of Dem campaign dollars about to be spent in California.
I don’t think it’s too soon to warn TPM readers away from picking a candidate for the Feinstein seat. Democratic Party activists are about to waste tens of millions of dollars (hundreds of millions?) on the Porter/Lee/Schiff race that really doesn’t matter, they all would be more than adequate.