If Trump loses, who represents his "movement" going into 2020?

[#TheShadowyAbyss]

Lets say, Trump loses but his "ideology" still remains after the election, who'd most likely lead and represent that anger and feeling going into the 2020 Republican primaries

[LLR]

Christie, Paul LePage (?), Ben Carson, even Sarah Palin. But nobody will do very well, for a variety of reasons.

1) Trump loses. See also 1964, 1968, 1976, 1992. When one ideology tries and fails, another will succeed. Someone either more conservative, like Cruz, or moderate, like Sandoval, will lead the polls.

2) No Trumpian candidates are very good. Self-explanatory, but of the names I listed above, all are bad politicians who won't succeed.

3) No more Obama. With Clinton as president, the landscape will be completely different; The opinions of the electorate will have shifted. In addition, race relations will not be in the forefront of everyone's minds with a white president.

4) Trump was one of a kind. Trump's campaign was all about tapping into the right energy at the right time with the right conditions. None of these candidates have the bragging, experience, or lack of self-restraint that endeared Trump to the base. In addition, the conditions of the race will be different, making it harder for anyone like Trump to win.

5) Stronger field. In 2020, people like Ryan, Gardner, Haley, and Ernst, who are better candidates than their 2016 counterparts, will likely run. The field as a whole will be much, much stronger.

Hope this answers your question

[Mr. Morden]

What is the "movement"?  Trump is no different from plenty of other Republicans on the right flank of the party on immigration.  It's just that he uses more provocative language than most of them do when he talks about it.  There'll be plenty of Republican candidates in 2020 who are "Trumpist" on immigration.

Where Trump deviates more from GOP orthodoxy is on foreign policy and (especially) on trade.  Will there be candidates who follow the Trump line on these issues running for the Republican nomination in 2020?  I don't know.  Who is even doing this on the statewide level this year?  It seems like even most of the enthusiastic Trump supporters, like Chris Christie (or even Pence for that matter), don't actually agree with him on these issues.  There are plenty of Republican politicians who support Trump, but few who've actually adopted a Trumpist policy platform in the areas where he deviates from the old party line.