Trump's racists attacks are 'central to 2020 strategy' — expect 'more race-baiting madness': report

President Donald Trump's racist attacks on four progressive Democratic Congresswomen are not "improvisational madness," but rather calculated "race-baiting" that is "central to his 2020 strategy."
So reports Axios, citing sources "close to Trump" who "predict more, not less, of the race-baiting madness."
Why?
Axios explains:
"Trump knows that in 2016, he won the white vote by 20+ points."
He knows most "older, white evangelicals...are unlikely to ditch him, no matter how offensive his comments."
He knows Congresswoman Alexandria Ocasio-Cortez, who Trump today called one of the "four Horsewomen of the Apocalypse," is a "4-for-4 grievance magnet" for his Fox News audience.
Axios says "white swing voters agreed with Trump on immigration," and "white Democrats with high levels of racial resentment were likely to vote ... Republican."
"Facebook is often his incubator. He has spent three times more than all Democratic contenders combined on Facebook, with a mix of message-testing immigration lines to appealing to Hispanics who seem susceptible to his worldview."