WASHINGTON (AP) — President Barack Obama appealed for "one nation and one people" in his second inaugural address. Any notion that the country's bitter partisanship might fade, however, seemed tempered by the president's newly assertive push of central Democratic tenets: safety-net programs for the poor, equal rights for gays and minorities and government spending on investments like schools and highways.

Deficit spending, the president's biggest conflict with Republicans, got only one passing mention. And he never uttered the word "debt."

Never fear, Republicans seemed to say in response. They will press the overspending issue time and again, starting this week in the GOP-controlled House. And the outcome of the two parties' long-running conflict will help shape the government's role in coming years, not to mention Obama's legacy.

All presidents want to drive the national agenda. Inauguration Day is their moment to lay out their visions. As Obama rudely learned in his first term, however, unforeseen events quickly intervene, and a president's fate is to adjust, improvise and re-order priorities.

After winning his first election with a call for greater unity and cooperation in Washington, Obama appeared to be taken aback by the ferocity of Republican resistance. It gave birth to the tea party in 2009, forced him to pass "Obamacare" without a single GOP vote, and fueled huge Democratic setbacks in the 2010 congressional elections.

Last November's election chastened Republicans a bit. But they still adamantly oppose the president's tax-and-spend policies. That poses the central challenge to his hopes for an ambitious second-term agenda.

Obama's re-election as the nation's first black president deepens his place in history. But his handling of a hostile U.S. House, as one "fiscal cliff" gives way to the next, will help determine the luster of his legacy.

In Monday's comparatively short speech, Obama recited a litany of liberal ideals.

"Our journey is not complete until our gay brothers and sisters are treated like anyone else under the law," he said. He hailed equal pay for women, investments in infrastructure, regulation of markets and treatment of immigrants so they are "enlisted in our workforce rather than expelled from our country."

His speech could have been called "It Takes a Village." ''Preserving our individual freedoms ultimately requires collective action," Obama said.

His sharpest warning to Republicans began with his single acknowledgement of the fierce deficit-spending debate.

"We must make the hard choices to reduce the cost of health care and the size of our deficit," the president said. "But we reject the belief that America must choose between caring for the generation that built this country and investing in the generation that will build its future."

He specifically defended Medicare, Medicaid and Social Security. Although Obama has expressed a willingness to slow the growth of these costly programs, he seemed to caution Republicans to back off the deeper cuts they propose.

Obama starts his second term facing three immediate priorities: restoring the economy's health, overhauling immigration laws and reducing gun violence. He also vowed Monday to "respond to the threat of climate change." That issue, however, seems likely to wait its turn.

The president chose the timing and outlines of his immigration push, knowing that many Republicans desperately want to improve their own standing with Hispanic voters. Continued...