WASHINGTON — Seeking to energize his sluggish second term, President Barack Obama vowed Tuesday night in his State of the Union address to sidestep Congress “whenever and wherever” necessary to narrow economic disparities between America’s rich and poor.

He unveiled an array of modest executive actions to increase the minimum wage for federal contract workers and make it easier for millions of low-income people to save for retirement.

“America does not stand still and neither do I,” Obama declared in his prime-time address before a joint session of Congress and millions of Americans watching on television.

Draped in presidential grandeur, Obama’s hour-long address served as the opening salvo in a midterm election fight for control of Congress that will quickly consume Washington’s attention. Democrats, seeking to cast Republicans as uncaring about the middle class, have urged Obama to focus on economic mobility and the gap between the wealthy and the poor. His emphasis on executive actions was greeted with shouts of “Do it!” from many members of his party.

Declaring 2014 a “year of action,” Obama also sought to convince an increasingly skeptical public that he still wields power in Washington even if he can’t crack through the divisions in Congress. Burned by a series of legislative failures in 2013, White House aides say they’re now redefining success not by what Obama can jam through Congress but by what actions he can take on his own.

Indeed, Obama’s proposals for action by lawmakers were slim and largely focused on old ideas that have gained little traction over the past year. He pressed Congress to revive a stalled immigration overhaul, pass an across-the-board increase in the federal minimum wage and expand access to early childhood education — all ideas that gained little traction after he proposed them last year. The president’s one new legislation proposal calls for expanding an income tax credit for workers without children.

Republicans, who saw their own approval ratings fall further in 2013, have also picked up the refrain of income inequality in recent months, though they have cast the widening gap between rich and poor as a symptom of Obama’s economic policies.

“Republicans have plans to close the gap, plans that focus on jobs first without more spending, government bailouts and red tape,” Rep. Cathy McMorris Rodgers, R-Wash., said in the Republicans’ televised response to the president’s speech.

“We hope the president will join us in a year of real action, by empowering people, not making their lives harder with unprecedented spending, higher taxes, and fewer jobs,” she said.

The economy and other domestic issues, including health care, dominated the president’s address. He touched only briefly on foreign policy, reiterating his threat to veto any new sanctions Congress might levy on Iran while nuclear negotiations with the Islamic republic are underway and touting the drawdown of American troops from Afghanistan this year.

In an emotional high point, Obama singled out Cory Remsburg, an Army Ranger who was a guest at the speech of first lady Michelle Obama. Remsburg, who was nearly killed in Afghanistan during one of his 10 deployments, rose slowly from his seat and was greeted by long and thunderous applause from the president and lawmakers.

Even as Washington increasingly focuses on income inequality, many parts of the economy are gaining strength, with corporate profits soaring and the financial markets hitting record highs. But, with millions of Americans still out of work or struggling with stagnant wages, Obama has found himself in the sometimes awkward position of promoting a recovery that feels distant for many.

“The cold, hard fact is that, even in the midst of recovery, too many Americans are working more than ever just to get by, let alone get ahead,” Obama said. “And too many still aren’t working at all.”

The president garnered some of his loudest applause, at least from Democrats, when he took on lawmakers who oppose his signature healthcare law which floundered in its initial rollout last fall. Obama said that, while he doesn’t expect to convince Republicans on the merits of the law, “I know that the American people aren’t interested in refighting old battles.”

Though Obama sought to emphasize his presidential powers, there are stark limits to what he can do on his own. For example, he unilaterally can raise the minimum hourly wage for new federal contractors from $7.25 to $10.10, as he announced, but he’ll need Congress in order to extend that increase to all of America’s workers.

The executive order for contractors, which Obama will sign in the coming weeks, is limited in its scope. It will not affect existing federal contracts, only new ones, and then only if other terms of an agreement change.

Republicans quickly panned the executive initiative as ineffective. Said Boehner: “The question is: How many people, Mr. President, will this executive action actually help? I suspect the answer is somewhere close to zero.”

White House officials countered by saying many more working people would benefit if Congress goes along with Obama’s plan to raise the minimum wage across the board.

“Give America a raise,” Obama declared.

Among the president’s other executive initiatives is a plan to help workers whose employers don’t offer retirement savings plans. The program would allow first-time savers to start building up savings in Treasury bonds that eventually could be converted into traditional IRAs. Obama was expected to promote the “starter” or “My IRA” accounts during a trip to Pittsburgh on Wednesday.

The president also announced new commitments from companies to consider hiring the long-term unemployed, the creation of four “manufacturing hubs” where universities and businesses would work together to develop and train workers, new incentives to encourage truckers to switch from dirtier fuels to natural gas or other alternatives and a proposed tax credit to promote the adoption of cars that can run on cleaner fuels, such as hydrogen, natural gas or biofuels.

The president’s go-it-alone strategy is in many ways an acknowledgment that he has failed to make good on two major promises to the American people: that he would change Washington’s hyper-partisanship and that his re-election would break the Republican “fever” and clear the way for congressional action on major initiatives.

Some Republicans have warned that the president’s focus on executive orders could backfire by angering GOP leaders who already don’t trust the White House.

“This isn’t the American way, courts have not supported his past attempts and he only does damage to the American people’s confidence in government when he doesn’t work with Congress to pass real reforms,” said Rep. Darrell Issa, R-Calif., chairman of the House Oversight Committee.

Obama isn’t abandoning Congress completely. He made a renewed pitch for legislation to overhaul the nation’s fractured immigration laws, perhaps his best opportunity for signing significant legislation this year. But the odds remain long, with many Republicans staunchly opposed to Obama’s plan for creating a pathway to citizenship for the estimated 11 million people already in the U.S. illegally.

Seeking to give the GOP some room to maneuver, Obama did not specifically call for a citizenship pathway Tuesday, saying only, “Let’s get it done. It’s time.”

Opening a new front with Congress, the president called for an extension of the earned-income tax credit which helps boost the wages of low-income families through tax refunds. Obama wants it broadened so that it provides more help than it does now to workers without children, a view embraced by some Republicans and conservative economists.

Obama singled out Republican Sen. Marco Rubio of Florida, who has proposed replacing the tax credit with a federal wage supplement for workers in certain low-paying jobs. 

Associated Press writers Josh Lederman, Jim Kuhnhenn, Nedra Pickler and Henry C. Jackson contributed to this report.