Political party strength in Maryland

The following table indicates the party of elected officials in the U.S. state of Maryland:

The table also indicates the historical party composition in the:

For years in which a presidential election was held, the table indicates which party's nominees received the state's electoral votes.

The parties are as follows:   American (A),   Anti-Administration (AA),   Democratic (D),   Democratic-Republican (DR),   Federalist (F),   Independent (I),   no party (N),   National Republican (NR),   National Union (NU),   Pro-Administration (PA),   Republican (R),   Whig (W), and   a tie or coalition within a group of elected officials.