A senior Federal Bureau of Investigations official repeatedly refused to answer when grilled by Sen. Ted Cruz (R-TX) at a hearing on Tuesday whether the federal agency participated in the riot at the Capitol building on January 6. Cruz questioned Jill Sanborn, who is executive assistant director of the FBI’s National Security Branch, whether any FBI agents participated in the events that unfolded on January 6, which Democrats have called an insurrection. Cruz asked Sanborn, “How many FBI agents or confidential informants actively participated in the events of January 6?” She responded, “Sir, I’m sure you can appreciate that I...