Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| District | Incumbent | Party | First elected | Result |
| --- | --- | --- | --- | --- |
| Ohio 1 | Benjamin Butterworth | Republican | 1884 | Re-elected |
| Ohio 2 | Charles Elwood Brown | Republican | 1884 | Retired Republican hold |
| Ohio 3 | Elihu S. Williams | Republican | 1886 | Re-elected |
| Ohio 4 | Samuel S. Yoder | Democratic | 1886 | Re-elected |
| Ohio 5 | George E. Seney | Democratic | 1886 | Re-elected |
| Ohio 6 | Melvin M. Boothman | Republican | 1886 | Re-elected |
| Ohio 7 | James E. Campbell | Democratic | 1886 | Retired Republican gain |
| Ohio 8 | Robert P. Kennedy | Republican | 1886 | Re-elected |
| Ohio 9 | William C. Cooper | Republican | 1884 | Re-elected |
| Ohio 10 | Jacob Romeis | Republican | 1884 | Lost Re-election Democratic gain |
| Ohio 11 | Albert C. Thompson | Republican | 1886 | Re-elected |
| Ohio 12 | Jacob J. Pugsley | Republican | 1886 | Re-elected |
| Ohio 13 | Joseph H. Outhwaite | Democratic | 1884 | Re-elected |
| Ohio 14 | Charles P. Wickham | Republican | 1886 | Re-elected |
| Ohio 15 | Charles H. Grosvenor | Republican | 1886 | Re-elected |
| Ohio 16 | Beriah Wilkins | Democratic | 1886 | Retired Democratic hold |
| Ohio 17 | Joseph D. Taylor | Republican | 1886 | Re-elected |
| Ohio 18 | William McKinley | Republican | 1886 | Re-elected |
| Ohio 19 | Ezra B. Taylor | Republican | 1880 (s) | Re-elected |
| Ohio 20 | George W. Crouse | Republican | 1886 | Retired Republican Hold |
| Ohio 21 | Martin A. Foran | Democratic | 1882 | Retired Republican gain |
Question:
Which democratic incumbent is from the district of ohio 7?
Answer:
James E. Campbell