How does this happen? Yeah, it's interesting to note that Duke came closer to winning his Senate race than this gubernatorial race, but he still lost pretty badly.
Had Dukakis won in 1988, this might have actually happened.
Had Dukakis won 1988, there would've been a stronger GOP bench in this race.
Johnston was a conservative Democratic Senator who was a power within the Democratic Party, and a major asset in Washington for Louisiana's oil and banking industries. The interests that now support Louisiana's GOP were fine with Johnston, and were not going to allow a pipsqueak like Duke get anywhere near the Senate.
Southern politics was much different in 1988 than it is now.