David Domina graduated from the University of Nebraska College of Law and began practicing law in Norfolk, Nebraska. He served in the Judge Advocate General Corps of the U.S. Army and Army Reserve before starting his own legal practice. Domina has extensive experience in high-stakes legal cases, including representing opponents of the Keystone XL pipeline and serving as co-lead counsel in a significant lawsuit. He has also been involved in government accountability efforts, having played a role in the impeachment of a state official.

David Domina's political identity is marked by a distinctive blend of progressive economic policies and a staunch defense of local interests. He advocates for tax reforms that challenge the status quo, including higher taxes on the wealthy, while simultaneously defending small businesses against what he sees as corporate favoritism. His environmental stance is equally compelling, as he represented opponents of the Keystone XL pipeline, arguing against the legislature's misuse of eminent domain. Domina's approach to government accountability is underscored by his role in the impeachment of Don Blank, showcasing a commitment to transparency and justice. This combination of progressive taxation, environmental advocacy, and governmental oversight reveals a politician who operates with ideological agility and a focus on local and regional concerns.