Rubio testifies during back-to-back Capitol Hill hearings

Marco Rubio is testifying in a series of hearings on Capitol Hill. The San Francisco Chronicle is providing the latest updates on the event. Rubio is appearing before lawmakers in back-to-back sessions. The testimony is part of the official proceedings in the Senate. These hearings are a significant part of the legislative schedule today. Rubio is addressing the committees as part of his official duties. The back-to-back nature indicates a demanding agenda for the senator. His testimony is a key element of the day's political news coverage.