Shifting Allegiances provides a comprehensive analysis of the increasing presence and influence of Latino Republicans in Congress and state legislatures. Contrary to past assumptions, this Element reveals that Latino Republicans are a diverse group, no longer confined to Cuban Americans in South Florida. By examining election data and candidate characteristics since 2018, the authors uncover the factors contributing to the success of Latino Republicans, including district demographics, conservative values, and strategic campaigning. This shift in political dynamics highlights a broader trend of ideological realignment and offers insights into the evolving landscape of Latino political representation in the United States.