President Obama will again strike a middle class tone in his State of the Union speech Tuesday, with the White House promising his words will be backed by substance.

A senior Democrat familiar with the remarks the president is crafting tells Fox News that Mr. Obama will build upon his December 2011 speech in Osawatomie, Kansas by providing specifics on how the president wants to fix the economy and tackle the issue of taxes, for example.

The now-famous address signaled a sharpening White House focus on middle class struggles. Officials say Tuesday's speech will pick up on that theme and lay out its blueprint.

"[H]is whole agenda has been a blueprint for the middle class and it will be going forward," White House Spokesman Jay Carney said Friday, noting the president's been a voice for the middle class from the outset. "[Y]ou will hear more ideas from him about how to assist the middle class. That's vitally important to him."

In Osawatomie, the president laid out his vision of how to build a strong middle class. "It is a view that says in America we are greater together -- when everyone engages in fair play and everybody gets a fair shot and everybody does their fair share," he said.

Fox News has learned that a key element of the State of the Union will be the issue reforming regulations, perhaps illustrating another Obama overture to the business community or an extension of his plan to streamline government.

After Los Angeles Mayor Antonio Villaraigosa met with the president this week, he told reporters he was confident that Mr. Obama will focus on boosting the nation's infrastructure as well as job training on Tuesday night.

These are themes the president has pounded before, but Carney emphasized the president will come armed with new ideas.

He told White House beat reporters Friday that Obama will indeed make "news".

Still, Carney wouldn't release any details on the speech itself, saying people will just have to wait until Tuesday. He said the president is still writing his speech, with the help of his advisors and head speechwriter, and will likely do so up until the day he delivers it.