His support before the last election was lower than that and he still managed to win. He won with 46% of the popular vote when it came to actual election day.
Even the Democratic politicians know he his likely to win that is why they are trying to impeach him. A high risk strategy because they are desperate, but it looks like it is backfiring:
"Quarterly polling by the Republican firm Firehouse Strategies, with Optimus, had President Trump struggling in the mega-battlegrounds of Michigan, Pennsylvania and Wisconsin —
but in the newest edition, he beats every Democrat."
https://www.axios.com/trump-impeach...sin-6776a580-9a0f-4362-a8a7-e6180f18ed14.html