She's shown what, exactly? She lost her race for Governor and, reading below, she's not the reason there are runoffs in Georgia.
David Shor's Postmortem
That basic pattern holds for Georgia specifically?
Yes. If you look at county-level returns in Georgia, it’s pretty clear that nonwhite voters, as a share of the electorate, decreased at a time when the nonwhite share of the state’s population probably increased. Relative to the electorate as a whole, nonwhite turnout fell. And then, among nonwhite voters who turned out, support for the Democratic nominee fell. That’s just not consistent with nonwhite turnout being the decisive factor. The only reason we won is that there were these very large swings toward us among college-educated white people in the Atlanta suburbs.
Now, you can argue for the counterfactual — maybe Black turnout and Black support would have fallen by more if we didn’t do the organizing. That’s possible. In practice though, the empirical effectiveness of all of these election practices are vastly overestimated by people in the industry. I think people in progressive politics have a love affair with the idea of mobilization, just because it seems to promise a way of winning without ideological compromise; all we have to do is turn out all of these non-voting Democrats and then we’ll win. We don’t have to make any changes or try to appeal to Republicans. But Democrats have invested tremendously in get-out-the-vote efforts over the past decade. And I think that it’s pretty clear that none of these interventions worked particularly well. It turns out the effects of canvassing are much lower than people think. The effects of sending get-out-the-vote mail is lower than people think. The effects of these large-scale organizing programs are much less than people think.
And then there’s the other problem with the mobilization theory: As education polarization increases, this truism that “if more people vote, we win” is increasingly less true. If you look at some of the county-level returns in Wisconsin, I think there’s very good evidence that the marginal nonvoters who came out this time — but not last time — leaned Republican. I think that as non-college whites become more and more conservative, the pool of nonvoters has gone from being an overwhelmingly Democratic group to relatively even. Those trends are going to continue. And frankly, if nonwhite, non-college-educated voters keep drifting away from us, it’s going to continue in another direction too.