In his first full news conference of the year Tuesday, Obama was to announce plans to let borrowers with mortgages insured by the Federal Housing Administration refinance at lower rates, saving the average homeowner more than $1,000 a year. Obama also was detailing an agreement with major lenders to compensate service members and veterans who were wrongfully foreclosed upon or denied lower interest rates.

A senior administration official described Obama's proposals to The Associated Press on the condition of anonymity to discuss them ahead of the announcement.

The efforts Obama is announcing do not require congressional approval and are limited in comparison with the vast expansion of government assistance to homeowners that he asked Congress to approve last month. That $5 billion to $10 billion plan would make it easier for more borrowers with burdensome mortgages to refinance their loans.

Obama is holding the news conference in the midst of a modestly improving economy. But international challenges as well as a stubbornly depressed housing market remain threats to the current recovery and to his presidency.

Obama has not held a full news conference since November. The White House scheduled this one on the same day as the 10-state Super Tuesday Republican presidential nominating contests. While aides insisted the timing was coincidental, it follows a pattern of Obama seeking the limelight when the attention is on the GOP.

The news conference comes amid a new sense of optimism at the White House. Obama's public approval ratings have inched up close to 50 percent. The president recently won an extension of a payroll tax cut that was a main element of his jobs plan for 2012. Economic signals suggest a recovery that is taking hold.

Still, he will probably face questions about the pace of the recovery. The unemployment rate in January was 8.3 percent, the highest it has been in an election year since the Great Depression. With rising gasoline prices threatening to slow the economy, Obama has also faced attacks from Republicans over his energy policy.

Iran's nuclear ambitions will also command attention in the aftermath of his meeting Monday with Israeli Prime Minister Benjamin Netanyahu. Tension over Iran has already contributed to higher oil prices, and Israel's threats of pre-emptive military strikes to prevent Tehran from building a nuclear bomb have dominated Washington discourse for weeks.

Other developments in the Middle East, where turmoil has soured some of the promise of last year's Arab Spring, are also likely to be addressed. Syria's bloody crackdown on protesters has increased pressure on Obama to intervene. Republican Sen. John McCain on Monday urged the United States to launch airstrikes against Syrian President Bashar Assad's regime to force him out of power.

Under the housing plans Obama was to announce Tuesday, FHA-insured borrowers would be able to refinance their loans at half the fee that the FHA currently charges. FHA borrowers who want to refinance now must pay a fee of 1.15 percent of their balance every year. Officials say those fees make refinancing unappealing to many borrowers. The new plan will reduce that charge to 0.55 percent.

With mortgage rates at about 4 percent, the administration estimates a typical FHA borrower with $175,000 still owed on a home could reduce monthly payments to $915 a month and save $100 a month more than the borrower would have under current FHA fees.

Though 2 million to 3 million borrowers would be eligible, the administration official would not speculate how many would actually seek to benefit from the program. The FHA provides mortgage insurance on loans made by FHA-approved lenders throughout the United States and its territories. The loans typically go to homeowners who do not have enough equity to qualify for standard mortgages. It is the largest insurer of mortgages in the world.

For service members and veterans, Obama will announce that major lenders will review foreclosures to determine whether they were done properly. If wrongly foreclosed upon, service members and veterans would be paid their lost equity and also be entitled to an additional $116,785 in compensation. That was a figure reached through an agreement with major lenders by the federal government and 49 state attorneys general.

Under the agreement, the lenders also would compensate service members who lost value in their homes when they were forced to sell them due to a military reassignment.