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 |
| --- | --- | --- | --- | --- | --- |
| Texas 1 | Wright Patman | Democratic | 1928.0 | Re-elected | Wright Patman (D) Unopposed |
| Texas 4 | Ray Roberts | Democratic | 1962.0 | Re-elected | Ray Roberts (D) 70.2% James Russell (R) 29.8% |
| Texas 5 | Earle Cabell | Democratic | 1964.0 | Lost re-election Republican gain | Alan Steelman (R) 55.7% Earle Cabell (D) 44.3% |
| Texas 6 | Olin E. Teague | Democratic | 1946.0 | Re-elected | Olin E. Teague (D) 72.6% Carl Nigliazzo (R) 27.4% |
| Texas 9 | Jack Brooks | Democratic | 1952.0 | Re-elected | Jack Brooks (D) 66.2% Randolph C. Reed (D) 33.8% |
| Texas 11 | William R. Poage | Democratic | 1936.0 | Re-elected | William R. Poage (D) Unopposed |
| Texas 12 | Jim Wright | Democratic | 1954.0 | Re-elected | Jim Wright (D) Unopposed |
| Texas 14 | John Andrew Young | Democratic | 1956.0 | Re-elected | John Andrew Young (D) Unopposed |
| Texas 15 | Kika de la Garza | Democratic | 1964.0 | Re-elected | Kika de la Garza (D) Unopposed |
| Texas 16 | Richard C. White | Democratic | 1964.0 | Re-elected | Richard C. White (D) Unopposed |
| Texas 17 | Omar Burleson | Democratic | 1946.0 | Re-elected | Omar Burleson (D) Unopposed |
| Texas 19 | George H. Mahon | Democratic | 1934.0 | Re-elected | George H. Mahon (D) Unopposed |
| Texas 21 | O. C. Fisher | Democratic | 1942.0 | Re-elected | O. C. Fisher (D) 56.8% Doug Harlan (R) 43.2% |
Question:
Who is the incumbent in district Texas 15?
Answer:
Kika de la Garza