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 | Candidates |
| --- | --- | --- | --- | --- | --- |
| Virginia 1 | John G. Jackson | Democratic-Republican | 1803 | Re-elected | John G. Jackson (DR) 60.3% Noah Linsey (F) 29.7% |
| Virginia 2 | John Morrow | Democratic-Republican | 1805 | Lost re-election Federalist gain | James Stephenson (F) 57.6% John Morrow (DR) 42.4% |
| Virginia 3 | John Smith | Democratic-Republican | 1801 | Re-elected | John Smith (DR) 87.0% Robert Page (F) 13.0% |
| Virginia 4 | David Holmes | Democratic-Republican | 1797 | Retired Federalist gain | Jacob Swoope (F) 53.7% Daniel Smith (DR) 46.3% |
| Virginia 9 | John Love | Democratic-Republican | 1807 | Re-elected | John Love (DR) |
| Virginia 10 | John Dawson | Democratic-Republican | 1797 | Re-elected | John Dawson (DR) 100% |
| Virginia 11 | James M. Garnett | Democratic-Republican | 1805 | Retired Democratic-Republican hold | John Roane (DR) 53.7% John T. Woodford (F) 46.3% |
| Virginia 12 | Burwell Bassett | Democratic-Republican | 1805 | Re-elected | Burwell Bassett (DR) 57.4% John Eyre (F) 42.6% |
| Virginia 13 | William A. Burwell | Democratic-Republican | 1806 (special) | Re-elected | William A. Burwell (DR) 100% |
| Virginia 14 | Matthew Clay | Democratic-Republican | 1797 | Re-elected | Matthew Clay (DR) 100% |
| Virginia 15 | John Randolph | Democratic-Republican | 1799 | Re-elected | John Randolph (DR) 71.5% Jerman Baker (DR) 28.5% |
| Virginia 16 | John W. Eppes | Democratic-Republican | 1803 | Re-elected | John W. Eppes (DR) 100% |
| Virginia 18 | Peterson Goodwyn | Democratic-Republican | 1803 | Re-elected | Peterson Goodwyn (DR) 70.5% John Pegram (F?) 29.5% |
Question:
What party represents the district with incumbent matthew clay?
Answer:
Democratic-Republican