After graduating from college, Troye worked for the Republican National Committee. She began a career in national security after the September 11 attacks. She served in the Pentagon as a George W. Bush administration appointee. Troye was an intelligence official in the DHS Office of Intelligence and Analysis serving as chief of strategy, policy, and plans. Troye worked in the Office of the Vice President of the United States as the homeland security and counterterrorism advisor to Vice President Pence and served as an aide to the White House Coronavirus Task Force.[4][5][6]
While Troye says she resigned, Mike Pence's national security adviser, Keith Kellogg, claims he fired her and "escorted her off the compound." He has also more generally accused her of lying about her time in the Trump-Pence administration. Troye has denied these allegations.[7]
After leaving the White House, Troye became an outspoken critic against the Trump administration's response on the COVID-19 pandemic. She later publicly supported Joe Biden for the 2020 United States presidential election.[8] Troye endorsed Biden in a video released by Republican Voters Against Trump.[9][10]