Updated 3:55 p.m. | General Motors CEO Mary Barra is testifying before the House Energy and Commerce Subcommittee on Oversight and Investigations on Tuesday as part of an investigation into the company’s recall of ignition switches . David Friedman, the acting administrator of the National Highway Traffic Safety Administration, is also scheduled to testify.  

Roll Call will be updating this post with video of the testimony from the hearing — titled “The GM Ignition Switch Recall: Why Did It Take So Long?” — which is scheduled to start at 2 p.m. Eastern.  

Ms. Barra vowed to “find out” why there was a long delay in GM announcing a safety defect in her opening statement before the committee. “Sitting here today, I cannot tell you why it took so long for a safety defect to be announced for this program. But I can tell you we will find out.”