Which is more likely...
By supporting stricter gun control, Trump will win over college educated whites who don't view it as a primary voting issue...
Or...
By supporting gun control, Trump will depress base voters who view opposing it as a primary voting issue.
Exactly.
It's a risk for Trump. Far more downside. To pretend otherwise is not smart politics.
A winning strategy/campaign is one that maximizes support in that equation.
Adding "pandering" and/or "appeasement" to that equation almost never results in a net increase in support, let alone maximizes it.
Ds understand that better than Rs.