Times of national and international crisis are often unifying events which lower levels of division within the public and between political elites. Yet, COVID-19 pandemic responses in the United States have been viewed as markedly polarized. Using a comprehensive dataset of over four million social media posts sent by local, state, and federal level political officials between January 2020 and September 2022, this paper explores the extent to which the COVID-19 pandemic was a rhetorically unifying or divisive event, and whether rhetorical responses differed across levels of government. The results show that federal level officials were less likely to message about COVID-19 and were more likely to do so in a polarizing fashion compared to state and local officials. Temporally, in the early stages of the pandemic there was indeed a collective rhetorical de-polarization across all levels of government. However, as the pandemic progressed, COVID-related messaging became more polarizing, especially among Republicans. Evidence also emerges of dynamic responsiveness from elected officials, with relativeness attentiveness to COVID increasing and polarizing rhetoric decreasing during time periods when local case counts were relatively high. These findings suggest that rhetorical unity is still possible, even in times of high political polarization, but that this unity is also short-lived and tempered by political and electoral considerations.