New polling suggests that Trump will have difficulty doing that because, for now, the 2020 election looks like it will be a referendum on him. An NBC News/Wall Street Journal poll out this weekend found that Trump trailed a generic Democratic candidate by 7 points in a hypothetical 2020 matchup. Trump trailed because among the same voters gave Trump a -6 point net approval rating (approval rating - disapproval rating). In the election, Trump had a -22 net favorability rating (favorable - unfavorable). The default position voters have right now is to make the 2020 election about the incumbent.

Source: CNN March 05, 2019 15:56 UTC