Obama is expected to talk at 11:50 a.m. with Washington-Lee High School juniors and seniors, and continue his push for Congress to extend a low-interest rate on federal subsidized student loans for another year. Right now that rate is at 3.4 percent, and it is set to double on July 1, returning to its previous rate of 6.8 percent.

Obama visited the University of North Carolina at Chapel Hill on April 24. (Carolyn Kaster/Associated Press)

Federal Stafford loans are just one type of student loan, although they are one of the most common. Most college students are eligible, as long as they can demonstrate financial need and are enrolled at least part-time. But there are limits: First-year undergraduates who are dependent on their parents can only take out $5,500 that year.

Student loan debt is a topic that has been embraced by Obama and Republican challenger Mitt Romney, both of whom are looking to reach young voters. Crushing student loan debt, along with a down economy, has been blamed for more 20-somethings moving back in with their parents and delaying life events like marriage, parenthood or buying a home.

The amount of outstanding student loan debt is poised to hit $1 trillion this month, according to Mark Kantrowitz, who publishes two financial aid Web sites and has been tracking the amount for years. Much of that debt is loans from private lenders. The Federal Reserve reported in February that the amount of federal student loans held by the government had reached $453.3 billion.

Obama and Education Secretary Arne Duncan plan to meet beforehand with three Washington-Lee seniors who are college bound and plan to use Stafford loans. Their parents are also expected to attend.

President Obama waves after he talks about the rising costs of student loans at the University of Iowa in Iowa City on April 25. (Larry Downing/Reuters)

This is Obama’s fifth visit to an Arlington public school since becoming president.

Washington-Lee has been rated one of the top high schools in the metro area by the Post’s Jay Matthews. The school of about 2,000 students has a nearly perfect four-year graduation rate. Last year its average SAT score was 1,669, higher than the national average of 1,500. The school offers more than 20 Advanced Placement courses, and about three-fourths of students attend a four-year college. About one-third of Washington-Lee students qualify for subsidized lunches.

I plan to attend the event and will tweet updates, which you can follow here:

For even more higher education news, you can follow me on Facebook and Twitter. And here are some of my recent posts about student loan debt:

Colleges visited by Obama have varying records on student loan debt (April 25)

Obama and Romney discuss student loans to reach college voters (April 24)

One trillion dollars: Student loan debt builds toward yet another record (Oct. 2011)