In January 2021, all ten living former defense secretaries raised alarm in an open letter against a military coup to overturn the election results, warning officials who would participate and specifically naming Miller, that they would face grave consequences if they violated the constitution.Carter, Ashton (January 3, 2021). "All 10 living former defense secretaries: Involving the military in election disputes would cross into dangerous territory". The Washington Post. Archived from the original on January 6, 2021. Retrieved January 4, 2021.
In January 2021, all ten living former defense secretaries raised alarm in an open letter against a military coup to overturn the election results, warning officials who would participate and specifically naming Miller, that they would face grave consequences if they violated the constitution.Carter, Ashton (January 3, 2021). "All 10 living former defense secretaries: Involving the military in election disputes would cross into dangerous territory". The Washington Post. Archived from the original on January 6, 2021. Retrieved January 4, 2021.