The prolonged feud between the two politicians felt more like personal vendettas than policy disagreements.

vendettas 是 vendetta 的复数形式，来自意大利语，原指家族间的世仇报复。在现代英语中引申为"长期激烈的个人恩怨或报复行为"，常带有非理性、情绪化的色彩。