As late-night talk shows undergo major changes and controversy, a new poll finds most Americans don't watch them regularly and the ones who do are more likely to be Democrats. The Associated Press-NORC Center for Public Affairs Research poll shows only about a quarter of Americans say they have watched a late-night show at least once a month in the past year. But about one-third of Democrats say they've done this monthly over the last year, compared with about 2 in 10 Republicans or independents. The poll was conducted after the announcement of Stephen Colbert's show being canceled but before Jimmy Kimmel's suspension.