Morning Rundown Highlights Oklahoma and D.C. Primaries and California B-52 Crash

NBC News' morning roundup reported on several key stories. It covered primary elections taking place in Oklahoma. The briefing also noted primary contests in Washington, D.C. Additionally, the segment reported a B-52 bomber crash in California. The primary races involve local candidates vying for office. The crash occurred during a training mission, according to reports. The roundup provided context for each event. Viewers were urged to follow developments in the elections and the investigation.