The Democratic Party and the Liberal Establishment have one card to play to defeat Trump and it won't be his record. The best for the Democrats to defeat Donald Trump in 2020 is to try and galvanize African-Americans to come back to the polls under the guise that Donald Trump is somehow more racist than the average White person.
This is the same Party in which just a few years praised the USA and White People for electing America's first Biracial President. The Democrats intentionally and deliberated ignored African-Americans after they received their votes and were able to be even more callous and dismissive toward African-Americans because of the Biracial-American and African-American's who happen to hold the position of President and First Lady.
White progressives and White LGBTQ use racism and slavery as a guise to gather up support for any Republican who they know will be hostile towards any abortion and LGBTQ policies. Since these issues aren't enough to make White conservatives note vote for their Party, the Left must use the race card by duping African-Americans into thinking they care about racism or the legacy of slavery which neither side does.
I believe this will backfire, many African-Americans have grown tired of the race-baiting realizing after the Obama Era they better focus their wallets and their lively hood vs trying to live through Biracial and African-American flunkies of the Democratic Party.
To beat Donald Trump, the Left will have to offer substance and put the Gay Agenda on the backburners because ordinary people can't eat Gay Marriages Licenses.