Donald Trump's approval numbers look bad no matter what poll is looked at. These numbers are from the Los Angeles Times / USC Dornsife Poll, using the following methodology:
The poll was conducted online from Dec. 15 to Jan. 15 among 3,862 respondents drawn from a panel designed to accurately reflect the country’s demographics. Results for the full sample have a margin of sampling error of 2 percentage points in either direction. Panel members are part of a continuing research project into public opinion by USC’s Center for Economic and Social Research, the poll’s other co-sponsor.