Party polarization in U.S. politics refers to the increasing ideological divide between political parties, particularly Democrats and Republicans. This phenomenon is characterized by intensified partisan conflict, with members of each party adopting more extreme positions and becoming less willing to compromise. Polarization can lead to legislative gridlock, decreased public trust in government, and heightened political antagonism. As polarization deepens, voters may feel increasingly alienated from the political process, impacting electoral behavior and the overall health of American democracy.