Elinore McCance-Katz, who served as President Donald Trump’s assistant secretary for mental health and substance abuse, was hired as a legislative policy analyst focused on drug diversion, or the illegal use of drugs. The role, which officials said is GS-15, or the highest level under the federal General Schedule, positions McCance-Katz to help shape the Biden administration’s strategy on drug enforcement, particularly with Biden’s nominee to run DEA still awaiting Senate confirmation.