Dr. Rush Holt is a former eight-term Democratic Congressman from New Jersey who served 16 years in Congress, and after retiring in 2014, became the CEO of the American Association for the Advancement of Science (AAAS), the non-profit organization that publishes the journal Science (and associated publications). He is a physicist and was also previously the assistant director of the Princeton Plasma Physics laboratory. This is his message to young scientists in the wake of the US presidential election of 2016, published in full. — the editor.