A two-party system is a political framework where two dominant parties compete for power, shaping the legislative and electoral landscape. In the U.S., this system has resulted in the predominance of the Democratic and Republican parties, influencing voter alignment and policy debates. This structure tends to simplify electoral choices for voters and encourages stability in governance but can also marginalize third parties, reducing diverse political representation. As a result, public discourse may become polarized, with limited opportunities for alternative viewpoints to gain traction in the political arena.