I consider myself a 60/40 right-leaning swing vote. Give me someone better to vote for than Trump and I probably would, but there's no way I could vote for Bernie Sanders. His plan is economic suicide...although, little if any of his plans would pass both the House and Senate.
Of the Democrat candidates, the only one that has a platform I could try to get behind is Klobuchar, but I don't think she is "left enough" to get the Democratic nomination.