EXCLUSIVE — Republican senators are demanding answers from Food and Drug Administration Commissioner Marty Makary regarding the agency’s approval of a new generic form of the abortion pill mifepristone, intensifying the conflict between the anti-abortion wing of the GOP and the Trump administration.

Sen. Bill Cassidy (R-LA), chairman of the Senate Health Committee, and 16 other GOP senators sent a letter, obtained by the Washington Examiner, to Makary on Thursday, calling for a detailed account of safety studies regarding the abortion pill and the timing of the new generic’s approval.