An alliance for combined action, especially a temporary alliance of political parties forming a government or of states
the ruling four-party coalition
A political alliance of differing groups, typically one comprising minority peoples and other disadvantaged groups
A government formed by the alliance of two or more political parties.
A conservative Democratic politician, specifically a member of a coalition of (chiefly) Southern Democrats who identify themselves as moderates. Frequently attributive, especially in Blue Dog Democrat and Blue Dog Coalition.