Presidential hopeful Bernie Sanders said Saturday that he thinks the Hillary Clinton campaign is "getting nervous about the kind of energy and enthusiasm our campaign is bringing forth."

A pair of new NBC News/Marist polls released Sunday shows how that enthusiasm is continuing to climb.

In New Hampshire, Sanders has overtaken Clinton with a 9-point lead, getting the support of 41 percent of Democratic voters compared to Clinton's 32 percent. Vice President Joe Biden gets the support of 16 percent of Democratic voters.

That marks s significant surge for the Vermont senator since July's NBC/Marist poll, when Clinton was ahead of Sanders by 10 points—42 percent to 32 percent.

And if Biden isn't in the running, the new poll shows Sanders with an even bigger lead—11 points—over Clinton.

While the new poll shows Clinton still leading Sanders in Iowa, Sanders is gaining steam there as well. The former secretary of state now has an 11-point lead, compared to a 24-point lead in the July poll.

As part of his three-day stop in the Hawkeye State, Sanders joined a picket line Friday night in Cedar Rapids with the Bakery, Confectionery, Tobacco Workers and Grain Millers Union Local 100G, who "are threatening to strike if a deal is not reached with the new owner, Ingredion Inc," according the Washington Post. The Sanders campaign website further states: "The facility was purchased last spring by an out-of-state company which pays its CEO millions of dollars a year but wants to cut pay and benefits for working families."

Sanders decried the "corporate greed" that "we're seeing here," and added at an event at Coe College later in the evening: "What is going on here is exactly what has been going on all over the country."

He urged that support from the crowd of an estimated 2,000 at Coe College continue "the day after the election" by demanding "Congress works on behalf of working families and not just the billionaire class."

Despite Sanders' surging numbers, his campaign is not garnering corporate media attention the way Republican presidential hopeful Donald Trump has.

Jim Naureckas wrote at Fairness and Accuracy in Media last month, "Unsurprisingly, corporate media are mainly interested in Cinderella stories when they don’t question the wealth of the class that owns and advertises in media outlets."