He doesn't want or need new voters. He needs to get enough of his existing voters out to flip a few key states. He flips WI, AZ, and MI, he wins the election.
even worse, and more likely; Trump only has to flip GA and PA to win the election
Here is some basic voter information for people that don't understand party affiliation and why Biden almost certainly will be re-elected. It is just basic math. There are just more Democratic voters than there are Republican voters and even the Independent voters lean heavily towards the Democrats. In the 2020 election Trump got 74 million votes, but he still got smoked by almost 9 million votes, because Biden ended up with almost 83 million votes. Trump's only hope is to suppress Democratic voter turnout, because if they turnout then he is going to lose. Anyway here is a recap and breakdown of Trump and Clinton 2016 matchup;
What the 2020 electorate looks like by party, race and ethnicity, age, education and religion
Party identification
Around a third of registered voters in the U.S. (34%) identify as independents, while 33% identify as Democrats and 29% identify as Republicans, according to a Center analysis of Americans’ partisan identification based on surveys of more than 12,000 registered voters in 2018 and 2019.
Most independents in the U.S. lean toward one of the two major parties. When taking independents’ partisan leanings into account, 49% of all registered voters either identify as Democrats or lean to the party, while 44% identify as Republicans or lean to the GOP.
Party identification among registered voters hasn’t changed dramatically over the past 25 years, but there have been some modest shifts. One such shift is that the Democratic Party’s advantage over the Republican Party in party identification has become smaller since 2017. Of course, just because a registered voter identifies with or leans toward a particular party does not necessarily mean they will vote for a candidate of that party (or vote at all). In a study of validated voters in 2016, 5% of Democrats and Democratic leaners reported voting for Trump, and 4% of Republicans and GOP leaners reported voting for Hillary Clinton.
What the 2020 electorate looks like by party, race and ethnicity, age, education and religion
What does the 2020 electorate look like politically, demographically and religiously as the race enters its final days?
www.pewresearch.org