 WTOP at 1234. Congressional committees moving now to investigate the assassination attempt as we hear from WTOP Capitol Hill correspondent Mitchell Miller today on The Hill Wednesday morning. The Secret Service is expected to provide the House Oversight Committee with a closed-door briefing this week. Panel Chairman James Comer says Secret Service Director Kimberly Cheadle will then appear next Monday. We'll have a full-scale committee hearing that will hopefully deliver some answers that every American has about