NBC Poll: Majority of Registered Voters Won't Vote For Trump in 2020 A new poll from NBC/Wall Street Journal found that only 36 percent of registered voters would vote for President Trump in 2020. 18 percent of voters would definitely vote for him, while another 18 percent would "probably" vote for him. Thirty-eight percent surveyed said they would vote for the Democratic candidate, while 14 percent said they would probably vote for the Democratic candidate. President Trump has endured a rocky first year in office, but is on the verge of passing his first major legislative win with the tax reform bill. He's on track to finish with a historically low approval rating for a first-year president.