The Senate Homeland Security and Governmental Affairs Committee holds a hearing on a data breach at the Office of Personnel Management announced earlier this month. Reports have linked Chinese hackers to the breach, which may have exposed personal information of millions of current and former federal employees.
Since a House Oversight hearing on the breach last week, some lawmakers have called for the resignation of OPM Director Katherine Archuleta.
Archuleta is expected to testify along with other officials from OPM and the Department of Homeland Security.
Coverage begins at 9:30 a.m.