Then the D's need to move towards me, not the other way around. Braun isn't really exciting to me and neither is our AG, but you know what isn't going to get me to vote for you? Making half your campaign basically, "I'm abortion Barbie" and the other half being a shill for the teacher's union. That doesn't move the needle for me. (And frankly I think things in the schools took a downturn under McCormick so I want her as far away from making decisions on that as possible. What should be a strength for her is a major weakness where I sit.)
Basically, run better candidates. It takes a whole bunch for people who don't agree with your party's worldview to vote for you. You have to make them comfortable to do that. The Indiana Democrats haven't been able to figure that out and frankly the national party hurts them in a state like Indiana with the way they act towards blue collar white workers in particular. Your President just called them garbage, why the hell would they vote for a person in that party who spends most of their time parroting what is said in D.C.?
I think the same works in reverse for Republicans in blue states.