CONCORD, N.H. (AP) — New Hampshire Congresswoman Annie Kuster is holding a telephone town hall about a pending student loan rate hike on July 1.

The discussion is scheduled for 6:30 p.m. Tuesday about student loan debt and college affordability.

If Congress does not act, the fixed interest rate on subsidized Stafford loans will double form 3.4 percent to 6.8 percent, making it harder for students and families to afford higher education.

Kuster will be joined on the call by an education expert from the Center for American Progress.

She's held several roundtables to hear directly from students about how they would be affected by a doubling of the student loan interest rate.