Throughout the election, Donald Trump has challenged conventional wisdom about how to run a campaign, flipping the script on what makes a successful politician. He has also, in the process, flipped the electoral map—and not in his favor. According to a series of new surveys, Hillary Clinton has gained a double-digit lead over Donald Trump in several battleground states, turning what were once purple or red states reliably blue.

Clinton’s post-convention bump is starting to look like a launching pad. The latest NBC/W.S.J./Marist poll, released Friday, shows the secretary of state leads Trump by an astounding 14 points in Colorado (46-32)—a six point increase from early July—and by 9 points in North Carolina (48-39), versus 6 points in the same poll a month earlier. While the race has tightened in Florida, where Clinton’s margin has narrowed to 5 points (44-39), the Democratic nominee has pulled ahead by 4 points in Virginia (46-33), extending her lead to 13.

The polling in each state represents a sea change from four years ago, when president Barack Obama won Virginia and Colorado by slim margins, nearly lost Florida, and was defeated by 4 points in North Carolina. “These are supposed to be battleground states, but right now, they don’t look that way,” Lee Miringoff, director of the Marist College Institute for Public Opinion, told The Wall Street Journal.

Even the possibility of a third-party spoiler couldn’t dint Clinton’s lead, which widened after a month of seemingly non-stop gaffes by the G.O.P. nominee. When Libertarian candidate Gary Johnson and Green Party candidate Jill Stein are taken into account, Clinton still registers a more-than-solid lead over Trump in all four states, according to the NBC/W.S.J./Marist poll, with more than 40 percent in a four-way race.

Friday’s survey is the most dramatic in a series of recent polls showing Clinton pulling away from Trump nationwide, with the RealClearPolitics aggregator giving her a 6.3-point lead over Trump and a 6.4-point lead if Johnson and Stein are included. Trump, meanwhile, has promised to “just keep doing the same thing I’m doing right now.” There’s still three months to go until Election Day, but at this rate, Clinton’s headed for a landslide.