From Breitbart...
On Wednesday, Rasmussen’s daily tracking poll showed that 51 percent of likely U.S. voters approved of President Trump’s job performance. Forty-eight percent disapproved.
Rasmussen’s daily tracking results are collected via telephone surveys of 500 likely voters per night and an online survey tool of random participants.
Meanwhile Gallup - still at 39%
Rasmussen was one of the most accurate pollsters of the 2016 Presidential Election (arguably the most accurate). Gallup didn't even bother polling.
Gallup no longer bother daily polling/reporting of the President's Job performance. They are weekly. Rasmussen is now the only daily pollster of Presidential Job Tracking (3 day rolling average).
Rasmussen use a full sample of 1500. They choose to only use 500 landline phones in their survey, given the changing landscape for modern day voters to not have landlines (just mobiles). That is, Rasmussen's claimed margin of sampling error for the full sample of 1,500 Likely Voters is +/- 2.5 percentage points with a 95% level of confidence.
Gallup's Weekly results are based on telephone interviews with approximately 1,500 national adults (per week), with a margin of error is ±3 percentage points. (NB: I was unable to find a level of confidence polling methodology for Gallup)
Can anybody answer why RealClearPolitics who provide an average of polls for Trump's job approval, choose to delete Rasmussen's favourable Trump results from their polling data?
And BTW, last week Rasmussen showed that 52% of Likely U.S. Voters believe when most reporters write or talk about the president, they are trying to block him from passing his agenda, up from 44% a year ago and 47% in August. Just five percent (5%) now think most reporters are trying to help Trump pass his agenda.