Washington ? Evangelicals, Republican women, Southerners and other critical groups in President Bush’s political coalition are increasingly worried about the direction the nation is headed and disappointed with his performance, an AP-Ipsos poll found.

The growing unease could be a troubling sign for a White House already struggling to keep the Republican Party base from slipping over Supreme Court nominee Harriet Miers, Gulf Coast spending projects, immigration and other issues.

“Politically, this is very serious for the president,” said James Thurber, a political scientist at American University. “If the base of his party has lost faith, that could spell trouble for his policy agenda and for the party generally.”

Public sentiment about the nation’s direction has sunk to new depths at a time people are anxious about Iraq, the economy, gas prices and the management of billions of dollars being spent for recovery from the nation’s worst natural disaster.

Only 28 percent say the country is headed in the right direction while two-thirds, 66 percent, say it is on the wrong track, the poll found.

Those most likely to have lost confidence about the nation’s direction over the past year include white evangelicals, down 30 percentage points since November, Republican women, down 28 points, Southerners, down 26 points, and suburban men, down 20 points.