how to color code borders of states based on a column in usmap r

Question

Hi i am trying highlight the states that are part of the program in a different color. This information is present in the data as "tag" column. Is it possible to do this in plot_usmap?

The following is currently the code i am using;

  scale_fill_continuous(low = "white", high = "red",name = "Percent") + 
  theme(legend.position = "right")```