"...what is remarkable is that, in the party of Jackson and Bryan and Roosevelt, smiling financiers now seem to stand on every corner, constantly proffering advice about this and that." The author can't possibly be this naive. I am not surprised at all; in fact, I'm glad that this is being aired. Yes, the Republican Party has been the "money in politics" whipping boy since Reagan, but it shouldn't be news to anybody…
How about since at least the mentioned Williams Jennings "Cross of Gold" Bryan (and if you haven't sampled his speech, I highly recommend it, probably the best political oratory in US history, even if wrong headed)? Or the Crédit Mobilier scandal a quarter century before then? And "money in politics" was one of the biggest issues with Watergate, leading to our current largely counterproductive campaign finance "reforms".
But it's "the mother's milk of politics" (credited to Democrat Jesse M. Unruh in 1966 per Wikipedia), and has been critically important for so many generations ... yeah, no one should be this naive.