The significance of a political manifesto in elections lies in its ability to outline a party's principles, goals, and proposed policies. It serves as a contract between the party and the electorate, helping voters understand the core values and commitments of candidates. Manifests can mobilize support, clarify policy positions, and differentiate one party from another during campaigns. They also create accountability, as voters can hold elected officials responsible for fulfilling the pledges made in their manifesto after elections.