In 1994, the Republican party was much different than today's Republican party. The Gingrich gang made many changes, moving the party to the right. The same will probably happen if we win by a similar margin.
You know, the usual reasons why Democrats lose in rural areas. Nevada (excluding Las Vegas) is one of the most rural states in the country. The Las Vegas area is slightly Democratic, while the rest of the state is like 80% Republican.
However, I am against #1. The Democrats should gerrymander states they control in a partisan way. If they don't, they literally hand dozens of seats in the House to the Republicans if the Republicans gerrymander nationwide and we don't.
I am in favor of playing dirty in every way, shape, and form, everything except outright cheating. If the other side plays dirty and we don't, we lose. And the stakes are too high to worry about being a "gracious loser".
This is why I admire Clinton's electoral skills. He didn't have a problem playing dirty when it was needed.