"Party allegiance" refers to a person's commitment and loyalty to a specific political party. It means being devoted to, supporting, and consistently voting for that party. Full definition
Women are trying to speak out against these abuses, but certain politicians seem eager to make this about party allegiance instead of victim protection. (christianitytoday.com)
New MPs elected since the general election and changes in party allegiance are noted at the bottom of the page. (en.wikipedia.org)
This usually includes a choice of candidates with the same party allegiance. (dprvoting.org)