Trump’s tax breaks only benefitted the wealthy, so now he’s lying and saying he’ll pass a new middle class tax cut. Trump’s trying to end protections for pre-existing conditions, so now he’s lying and saying he’s not. Lucky for Trump, his supporters are dumb enough to buy it.
Some aren't that dumb - the fake info has been pretty constant where they obtain "news." It's important to try and convince those who can be convinced.