Did the voters also attempt to change the state constitution so that it was harder for justices to interpret in a way in which gay marriage was banned?
If not, they are unlikely to overturn the precedent the court already created.
In Iowa it is very difficult for the people to vote to change the Constitution. An amendments must first pass the both chambers of the legislature over two sessions. The Democrat in charge of the State Senate steadfastly refused to allow a vote. That may change with GOP takeover of the House and a new GOP governor.
The justices legislated from the bench. They found law where there was none and “interpreted” it.
They got their backsides handed to them as a result.
You mean like campaign laws, say in Alaska, where precedent has beed tossed out the window.