“We have an obligation to everyone devastated by this epidemic to find answers. All of this didn’t happen overnight. It happened one prescription and marketing program at a time.” Sen. Claire McCaskill of Missouri wants answers from the companies pushing the products at the heart of the opioid crisis. For now, she’s demanding that they hand over “internal information including marketing plans, sales records and contributions to third-party advocacy groups.”

+ NYMag: Chris Christie has been tapped by Trump to lead the White House Opioid Commission. (In NJ, Christie passed one of the most aggressive laws to combat the opioid epidemic.)

+ Vox: How the opioid epidemic became America’s worst drug crisis ever, in 15 maps and charts.