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 | Sam B. Hall | Democratic | 1976.0 | Re-elected | Sam B. Hall (D) Unopposed |
| Texas 3 | Steve Bartlett | Republican | 1982.0 | Re-elected | Steve Bartlett (R) 83.0% Jim Westbrook (D) 17.0% |
| Texas 4 | Ralph Hall | Democratic | 1980.0 | Re-elected | Ralph Hall (D) 58.0% Thomas Blow (R) 42.0% |
| Texas 5 | John Wiley Bryant | Democratic | 1982.0 | Re-elected | John Wiley Bryant (D) Unopposed |
| Texas 6 | Phil Gramm | Republican | 1978.0 | Retired to run for U. S. Senate Republican hold | Joe Barton (R) 56.6% Dan Kubiak (D) 43.4% |
| Texas 8 | Jack Fields | Republican | 1980.0 | Re-elected | Jack Fields (R) 64.6% Don Buford (D) 35.4% |
| Texas 9 | Jack Brooks | Democratic | 1952.0 | Re-elected | Jack Brooks (D) 58.8% Jim Mahan (R) 41.2% |
| Texas 10 | J. J. Pickle | Democratic | 1963.0 | Re-elected | J. J. Pickle (D) Unopposed |
| Texas 11 | Marvin Leath | Democratic | 1978.0 | Re-elected | Marvin Leath (D) Unopposed |
| Texas 12 | Jim Wright | Democratic | 1954.0 | Re-elected | Jim Wright (D) Unopposed |
| Texas 13 | Jack Hightower | Democratic | 1974.0 | Lost re-election Republican gain | Beau Boulter (R) 53.0% Jack Hightower (D) 47.0% |
| Texas 15 | Kika de la Garza | Democratic | 1964.0 | Re-elected | Kika de la Garza (D) Unopposed |
| Texas 16 | Ronald D. Coleman | Democratic | 1982.0 | Re-elected | Ronald D. Coleman (D) 57.4% Jack Hammond (R) 42.6% |
| Texas 17 | Charles Stenholm | Democratic | 1978.0 | Re-elected | Charles Stenholm (D) Unopposed |
| Texas 19 | Kent Hance | Democratic | 1978.0 | Retired to run for U. S. Senate Republican gain | Larry Combest (R) 58.1% Don R. Richards (D) 41.9% |
| Texas 20 | Henry B. Gonzalez | Democratic | 1961.0 | Re-elected | Henry B. Gonzalez (D) Unopposed |
| Texas 21 | Tom Loeffler | Republican | 1978.0 | Re-elected | Tom Loeffler (R) 80.6% Joe Sullivan (D) 19.4% |
| Texas 22 | Ron Paul | Republican | 1978.0 | Retired to run for U. S. Senate Republican hold | Tom DeLay (R) 65.3% Doug Williams (R) 34.7% |
| Texas 23 | Abraham Kazen, Jr. | Democratic | 1966.0 | Lost renomination Democratic hold | Albert Bustamante (D) Unopposed |
| Texas 24 | Martin Frost | Democratic | 1978.0 | Re-elected | Martin Frost (D) 59.5% Bob Burk (R) 40.5% |
| Texas 26 | Tom Vandergriff | Democratic | 1982.0 | Lost re-election Republican gain | Dick Armey (R) 51.3% Tom Vandergriff (D) 48.7% |
Question:
What district is incumbent jack hightower from?
Answer:
Texas 13