Despite the odd poll showing that the gap is not that wide, it really is not wise for the Democrats to be targeting this for the Presidential level.
It is not likely to be a tipping point seat, Democrats will be heading for a landslide if they win this. Also even if they win it, chances are it will only stay Democrat for 1 term and revert to becoming Republican again in 2024. Trump is uniquely unpopular in Utah, pretty much any other Republican candidate would win this state by a country mile.
The only thing they should be doing here is campaigning enough in the 4th Congressional District to ensure they hold it. If the presidential poll is that close, holding this district is nailed on. A result where the Democrats poll in at least the mid-30's statewide should definitely be enough to hold it.
A conservative who has always lived in labour areas.