Any time I see a reference to Trump's "base" I know what I read next will be a denial of reality.
The truth is that every politician and every political party has the support of a combination of: 1) devout followers (often referred to as "the base"), 2) People who genuinely support the politician's or party's entire platform for reasons unrelated to the persona of the leader, 3) people who support most but not all of the politician's or party's platform, 4) people who could just never stomach voting for the opposition under any circumstances, 5) and those who support out of unprincipled self interest (looking for a job in the administration, hoping for a future leadership role, looking for a government contract, etc.).
There is NO DIFFERENCE between the GOP and Dems in this respect, yet the media and their subscribers talk about this as if it is a phenomenon unique to Trump and his supporters. It isn't. Period.