Nate Silver, FiveThirtyEight
I’m not sure we’re on this path yet. But there are some signs of it. The recent downtick in Trump’s approval ratings — after a couple of months when his numbers were steady — coincides with a period where Trump is getting more scrutiny, both from Republicans in Congress and from the conservative media. These are measured steps — it’s not like Republicans have begun impeachment proceedings or Sean Hannity has abandoned Trump. But in his time as president so far, Trump has found more ways to lose supporters than to gain them.
Source: Real Clear Politics