Sen. Elizabeth Warren said the "notion of parties and party identification" in the U.S. has begun to shift, claiming that voters feel out of touch with their respective political party. "It's saying, 'Look, we get it. The game is rigged. It's rigged in favor of those at the top and rigged against the rest of us. And we want some accountability on that," Warren. Warren, who endorsed Hillary Clinton in the presidential election, said the U.S. is beginning to shift to "progressive grassroots" politics instead. Warren response was to a poll that found 67% of respondents believed the Democratic Party does not properly represent the U.S.