Are you sure? By 2020 who knows what Trump will be.
Self-described
Trump speaking at the Conservative Political Action Conference (CPAC) in 2015.
Trump registered as a Republican in Manhattan in 1987 and since that time has changed his party affiliation five times. In 1999, Trump changed his party affiliation to the Independence Party of New York. In August 2001, Trump changed his party affiliation to Democratic. In September 2009, Trump changed his party affiliation back to the Republican Party. In December 2011, Trump changed to "no party affiliation" (independent). In April 2012, Trump again returned to the Republican Party.[27]
In a 2004 interview, Trump told CNN's Wolf Blitzer: "In many cases, I probably identify more as Democrat," explaining: "It just seems that the economy does better under the Democrats than the Republicans. Now, it shouldn't be that way. But if you go back, I mean it just seems that the economy does better under the Democrats [...] But certainly we had some very good economies under Democrats, as well as Republicans. But we've had some pretty bad disaster under the Republicans."[28] In a July 2015 interview, Trump said that he has a broad range of political positions and that "I identify with some things as a Democrat."[27] .......................
https://en.wikipedia.org/wiki/Political_positions_of_Donald_Trump
I'm just looking at what Trump has done as president.
• Appointed Supreme Court Justice Neil Gorsuch and more than 75 other constitutionally sound federal judges, 30 of which are serving.
• Reinstated an expanded Mexico City Policy blocking foreign aid from being used for abortions.
• Cracked down on illegal immigration and “sanctuary cities.†As Attorney General Jeff Sessions put it: “The lawlessness, the abdication of the duty to enforce our laws, and the catch and release policies of the past are over.â€
• Issued an order killing two federal regulations for every new one. In actuality, 16 were cut for every new one in his first year, saving billions.
• Engineered a historic tax cut that will save money for more than 80 percent of American households.
• Withdrew the U.S. from the Paris Climate Agreement, ending the threat of U.S. governance by international bureaucrats.
• Reversed onerous Obama environmental rules that gave the Environmental Protection Agency (EPA) ham-handed authority to destroy the coal industry and abrogate landowners’ rights.
• Kick-started America’s energy sector by curtailing regulations, facilitating the Keystone XL Pipeline and opening up vast federal areas to oil and gas exploration.
• Presided over an economic and stock market boom, lowered unemployment and brought manufacturing jobs back to America from overseas.
• Rebuilt the nation’s military, destroyed ISIS and faced down North Korea’s “Rocket Man.â€
• Issued an order enforcing First Amendment protections for religious liberty.
• Restored the freedom of military chaplains to espouse biblical morality, and essentially reversing Mr. Obama’s transgender military policy.
• Revoked the Education Department’s order that public schools allow gender-confused males access to girls’ restrooms and locker rooms.
• Cracked down on sex trafficking. President Trump signed a law allowing states to move against sex-ad Internet sites, and the Justice Department on April 6 seized and shut down Backpage.com, which carried ads for prostitution, including trafficked children.
• Overhauled the mismanaged Veterans Administration and giving veterans more health care choices.
• Replaced Obamacare incrementally, beginning with a repeal of the individual mandate.
• Imposed sanctions on Venezuela’s socialist dictatorship and revising Mr. Obama’s deals with communist Cuba.
• Recognized Jerusalem as Israel’s capital and repairing damage that Mr. Obama did to the U.S.-Israel relationship.
• Worked with Central American nations to crack down on MS-13 gangs.
https://www.washingtontimes.com/news/2018/may/6/giving-trumps-accomplishments-their-due/