Republicans are hoping a midwestern blue-collar wave can carry Donald Trump to the White House, and there’s growing statistical and anecdotal evidence that their hopes are justified.

Nate Silver, the left’s favorite polling guru, posted a chart on Sunday showing Trump is doing far better in midwestern states than Gov. Mitt Romney did in 2012.

Silver’s analysis shows Trump has gained 6 points over Romney in Ohio and Iowa, and has closed the gap with Hillary Clinton down to almost error-margin levels in crucial Michigan and Pennsylvania.

That midwestern success is what gives Trump a one-third chance of winning the election, said Silver. “Clinton underperforming Obama’s 2012 forecast by *4 points* in the Midwest. That’s a major liability,” he tweeted.

On Sunday night, according to RealClearPolitics’s average of polls, Clinton was ahead of Trump in Pennsylvania by just 2.4 points (46 percent to 43.6 percent), and ahead in Michigan by 4.7 points (44.7 percent to 40 percent). A win in either state could be enough for Trump to win the election.

GOP leaders in Michigan and Pennsylvania have plenty of reasons for optimism, even as Trump is still lagging in the polls.

“I think what’s happening is that you’re seeing demographic shifts that cross state lines,” said Saul Anuzis, a former chairman of the Michigan GOP. This shift reaches across Michigan, Ohio, Wisconsin, Pennsylvania,” he told Breitbart News.

These blue-collar voters can be difficult to get to the polls, he warned. “It is difficult to turn them out [on election day]. But the fact that they are willing to stand in line for hours [at Trump rallies] tells you something,” he said. “I would not be surprised if Trump won 40 states or lost 40 states — if the wave of blue collars comes out, I can see him sweeping the states.”

In a bus trip across the northern part of the state, GOP spokeswoman Sarah Anderson kept track of the lawn signs and posters. “It was all Donald Trump … I would say it was 99 to 1 [and] I think I saw six Hillary signs in our trek,” she told Breitbart News. Compared to the Democrats, “there is a huge enthusiasm gap … everything is trending Trump across the country,” she added.

Top GOP leaders are acting bullish. GOP chairman Reince Priebus says the polls in Michigan are tied. “We’ve invested over $100 [million] in data … predictive modeling tells us it’s tied,” claimed Priebus, without defining “tied.”

Top Democrats are flying into Michigan and Pennsylvania — not into Florida or North Carolina or Nevada — to keep the state blue throughout election day. On Sunday, Hillary Clinton was a church service in Philadelphia, declaring the race was about President Barack Obama. “This election is about doing everything we can to stop the movement to destroy President Obama’s legacy,” she said.

On Monday, Clinton will be in Grand Rapids and Obama will fly to the University of Michigan in Ann Arbor.

Trump is going to Scranton, Pa., on Monday and then to Grand Rapids in Michigan for a midnight rally. On Sunday evening, Trump was at a huge rally in Sterling Heights, Michigan. “Ocean of people,” said a tweet from the Daily Mail’s reporter.

https://twitter.com/dmartosko/status/795427819128033280

That huge audience echoes the GOP primary in Pennsylvania, which doubled in size to 1.6 million in 2016, while voting at the Democratic primaries dropped a quarter, down to 1.7 million. The state doesn’t have any early voting to reveal voters’ true preferences, but the two campaigns’ polls are causing the leaders to converge in the Keystone State.

The shift towards Trump is found in nearly every state from New York to Iowa, expect for Illinois, where Clinton has expanded Obama’s winning margin in the diverse state from 4 points in 2012 to a huge 11.5 percent advantage.

Just north of Pennsylvania, voters in New York’s western districts are shifting away from Clinton.

Siena has terrible numbers for Clinton in Upstate NY. Down 5% in #NY19 (Obama won by 6% in '12). Down 14% in #NY22 (Obama/Romney tied). — Dave Wasserman (@Redistrict) November 6, 2016

This is unsettling for Clinton if that kind of underperformance is similar across the border in PA & elsewhere. https://t.co/4C5OBvZWF4 — Dave Wasserman (@Redistrict) November 6, 2016

Just west of Wisconsin, voters in Iowa have shifted sharply towards Trump, putting him 12 points ahead of Romney’s 2012 performance against Obama.

In neighboring Minnesota, RealClearPolitics shows Trump is trailing by six points, in a state which Obama won by almost eight points.

West of Ohio lies Indiana, where the RealClearPolling chart says Trump is ahead by 10.7 points, which is similar to Romney’s 10.2 point win over Obama in 2012.

Just south of Michigan, in Ohio, Trump surged by 3 points in the last month, putting him level and Clinton, according to the RealClearPolling average. Silver’s calculations show Trump leading in Ohio by 2.3 points, even though Obama won the state by 50.7 percent to 47.7 percent in 2012. CBS reports that Trump surged by 5 points in the last four weeks.

Trump’s deputies say Ohio’s early voting patterns show a big swing to Trump.

Absentee and Early Voting continues to be up in key Romney-carried counties statewide.

In Lake County, there have been 1,135 more ballots cast to-date than at this point in 2012, a 4 percent increase.

Warren County has 3,954 more votes have been cast to date, a 15 percent increase from this point in 2012.

Marion County has the largest jump in ballots cast to date of all Romney counties, which is running ahead of the 2012 pace in ballots cast by 25 percent.

Contrast this with the Democrat strongholds, which all continue to see a drop-off in voter turnout.

Franklin County is seeing over 25,000 fewer ballots being cast at this point compared to 2012, which amounts to a 15 percent drop.

In Lucas County, where President Obama won with a 32% margin, there has been a 20% decrease in voter turnout compared to 2012.

So the blue-collar wave exists — but neither Trump, not Clinton know if it is enough to sweep her out of politic and sweep him all the way down the Potomac and into the Oval Office. “This is a populist realignment that we have not seen a long time,” said Anuzis. “It is a wide open ball game, and big part of it is going to be who turns out” on election day, he said.