Phyllis Schlafly, an icon of the conservative movement who has been active for half a century, is warning the nation: Donald Trump is the last hope for America.

Schlafly unloaded on Republicans in Congress for passing the $1.1 trillion omnibus bill last week, a move she called a "betrayal."

"This is a betrayal of the grassroots and of the Republican Party," Schlafly said in an exclusive interview with WND. "We thought we were electing a different crowd to stand up for America, and they didn't. We're extremely outraged by what Congress has done. Nancy Pelosi couldn't have engineered it any better. I think the people are going to react by electing Donald Trump."

Trump put out a statement Friday to ABC News saying, "If anyone needs more evidence of why the American people are suffering at the hands of their own government, look no further than the budget deal announced by Speaker Ryan. In order to avoid a government shutdown, a cowardly threat from an incompetent president, the elected Republicans in Congress threw in the towel and showed absolutely no budget discipline."

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Trump continued, "Congress cannot seem to help itself in bending to every whim of special interests. How can they face their constituents when they continue to burden our children and grandchildren with debts they will never be able to repay? Our government is failing us, so we must do something about it. Who knows how bad things will be when the next administration comes in and has to pick up the pieces?"

Schlafly applauded the GOP front-runner's fighting spirit.

"It sounds like Donald Trump is the only one who has any fight in him," she said. "He will fight for the issues that we really care about and are very hot at the present time, such as the immigration issue. I don't see anyone else who's eager to fight."

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The Republican-controlled Congress just sold America down in river in the "worst kind of betrayal," Schlafly told WND.

"It's the worst kind of a betrayal because we thought we elected a bunch of good guys who would shape up the party," she said. "We had a lot of fancy promises that the Republicans were going to shape up and change course. And they disappointed us. Betrayal is an appropriate word to describe it."

WND asked Schlafly if she believes Donald Trump is the last hope for America.

"He does look like he's the last hope [for America]," Schlafly said. "We don't hear anybody saying what he's saying. In fact, most of the people who ought to be lining up with him are attacking him. They're probably jealous of the amount of press coverage he gets. But the reason he gets so much press coverage is the grassroots are fed up with people who are running things, and they do want a change. They do want people to stand up for America. It really resonates when he says he wants to 'Make America Great Again.'"

Schlafly said it's not only Republicans who feel betrayed, but Democrats, too.

"They are betrayed," she said. "There's no doubt about it. The working man and woman have been betrayed by both parties. They're ready for a change ... anything they think would be better."

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The conservative superstar also blasted leaders of both parties who advocate lax immigration policies while American workers continue to struggle in a tepid economy.

"The rich guys are putting the money in. They want to bring in the low-wage people. That's the way they think they'll make money," she said. "But that's not the way America will prosper. America was built because we had a great growing and prosperous middle class. We need to rebuild that again. I'm willing to give a new try to somebody else."