The flurry of post-convention polling released over the past week shows Clinton establishing a lead approaching double-digits in most national surveys and forming consistent advantages in swing states from Michigan and Pennsylvania in the Rustbelt to Virginia and Florida across the Sunbelt.

Some of Clinton’s surge may recede as the afterglow of the widely praised Democratic National Convention fades. But national and battleground-state polling shows enormous internal consistency—and portrays a race whose underlying structure is solidifying. In that emerging structure, white-collar whites loom as the fulcrum between blue-collar whites still rallying around Trump and the voters of color coalescing in potentially record numbers against him.

Taken together, the surveys show Clinton pushing the boundaries of the traditional Democratic advantage among nonwhite voters. Since 1984, according to calculations by ABC pollster Gary Langer, every Democratic nominee has carried between 78 and 82 percent of the combined two-party vote among minority voters (except for John Kerry, who carried only 71 percent of them against George W. Bush in 2004).

The latest polling gives Clinton reason to hope she can breach that upper limit. In last week’s NBC/Wall Street Journal survey, she led Trump among African Americans by 91 percent to 1 percent; in Sunday’s ABC/Washington Post survey, her advantage was 92 percent to 2 percent. New state polls in Michigan and Virginia also put Trump’s African American support at 2 percent and 1 percent respectively. In early July, NBC/WSJ/Marist Polls placed his African American support in Ohio and Pennsylvania at literally zero. Even Mitt Romney carried 6 percent of African Americans nationally against President Obama, according to exit polls.

The results among Hispanics in national surveys have oscillated more, partly because most polls survey relatively few of them (and often don’t conduct interviews in Spanish). But two recent large-scale surveys of Hispanics by the Spanish-language television networks Telemundo and Univision both put Trump’s support in that growing group below 20 percent. That’s well below even the meager 27 percent Romney attracted in 2012 according to exit polls. Some of the latest national surveys show Clinton potentially on a path to draw as much as a combined 85 percent among voters of color.

Conversely, even with all the turbulence buffeting him, Trump still appears positioned for a strong showing among the group that has been his foundation from the start: whites without a college education, especially men. In the first national polls immediately after the Democratic National Convention, Trump’s margin among blue-collar whites sagged (dropping by 13 points in the NBC/WSJ survey and by 15 points in a Marist/McClatchy poll). But Trump led among white men without college degrees by 42 points in Sunday’s ABC/Washington Post poll and by 31 points in a national Monmouth University poll released Monday; his advantage among white women without a degree stood at 11 points in the former and 17 in the latter.