It’s easy for us to mock Trump because we believe our news sources rather than him. Not everyone agrees.
The NationTracker article defines the Believers as his strongest backers, those who believe in him. The Conditionals are those those who support him with the condition that he deliver on his promises. The Curious are those who don’t support him now but could change their minds depending on what he does. And the Resisters are those who oppose him no matter what.
Notice the Believers plus the Conditionals are about 43% of the likely voters polled.
Here is how confident Trump makes the the various groups feel:
The article goes into more depth about how the people polled feel about the Republican Health Care Bill, whether or not Trump’s offices were wiretapped, etc. I think it’s fascinating reading.