But the experts say that some polls have now begun to note his support among white Catholic voters wavering.
Both main American parties attempted to appeal to Catholic voters.
"We all know that there are several wedge constituencies in our very evenly divided electorate, and one of those is the Catholic voters."
He remains influential among conservative Catholic voters, an important demographic electoral bloc.
But some analysts say that Catholic voters do show some differences.
It tells Catholic voters to consider a range of issues and vote their consciences.
Between 16% and 22% of American Catholic voters share the view that abortion should never be permitted by law.
A majority of districts with mostly Catholic voters supported responsible government.
Can the white Catholic voter make the difference in 1988?
The Mayor is clearly aware that only 18 percent of white Catholic voters supported him in 1989.