Democrats have more midterm targets than they can afford to tackle — and they are sparring over where to spend the limited cash they have.

The party's progressive and establishment wings are squabbling over where to prioritize finite funds on an improbably expanded Senate map — and over who bears responsibility for bankrolling left-flank candidates like Angie Nixon in Florida and Abdul El-Sayed in Michigan. The skirmishes could flare into a full-fledged intraparty war if the midterms don't break big for Democrats in less than two weeks.

Black lawmakers are calling for more money to flow to Florida for Nixon and to Mississippi for Scott Colom, while Latino leaders are castigating Kentucky Gov. Andy Beshear and the Democratic Governors Association for investing too little in Texas where Gina Hinojosa appears within striking distance of GOP Gov. Greg Abbott.

And Democratic operatives working on othe...