Why is Flores "naturally weak"? It wasn't her fault Nevada had an R wave.
That's not why. Steven Horsford and Ross Miller were victims of the R wave, as were most of the row officers that ran that year (though some did better than others). Flores, however, ran a terrible campaign
That doesn't sound like she ran a terrible campaign, more like she used a strategy that the columnist disagreed with politically.
Former gang member? Had an abortion? This stuff might be a "compelling story" from a progressive standpoint, but the average swing voter is not going to see that stuff automatically as a plus. Heck, it will turn off a large number of them if she doesn't explain it right. In this case, I see what the columnist is getting at.