titles before and after names
A title attached to a name.
Capitalize a title before a name: President Lincoln; Dr. Hertz. Lowercase a title that follows the name, or stands alone: Lincoln, the president; the president spoke. Do not stack two forms of the same credential: not Dr. Hertz, Ph.D.
Examples
Use Senator Lane filed the brief.
Use Lane, the senator, filed the brief.
Avoid Dr. Lane, Ph.D., filed the brief.