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) 78.1% Fred Hudson (R) 21.9% |
| Texas 3 | James M. Collins | Republican | 1968.0 | Re-elected | James M. Collins (R) Unopposed |
| Texas 4 | Ray Roberts | Democratic | 1962.0 | Re-elected | Ray Roberts (D) 61.5% Frank S. Glenn (R) 38.5% |
| Texas 6 | Olin E. Teague | Democratic | 1946.0 | Retired Democratic hold | Phil Gramm (D) 65.1% Wes Mowery (R) 34.9% |
| Texas 9 | Jack Brooks | Democratic | 1952.0 | Re-elected | Jack Brooks (D) 63.3% Randy Evans (R) 36.7% |
| Texas 11 | William R. Poage | Democratic | 1936.0 | Retired Democratic hold | Marvin Leath (D) 51.6% Jack Burgess (R) 48.4% |
| Texas 12 | Jim Wright | Democratic | 1954.0 | Re-elected | Jim Wright (D) 68.5% Claude K. Brown (R) 31.5% |
| Texas 14 | John Andrew Young | Democratic | 1956.0 | Lost renomination Democratic hold | Joseph P. Wyatt, Jr. (D) 72.4% Joy Yates (R) 27.6% |
| Texas 16 | Richard C. White | Democratic | 1964.0 | Re-elected | Richard C. White (D) 70.0% Michael Giere (R) 30.0% |
| Texas 19 | George H. Mahon | Democratic | 1934.0 | Retired Democratic hold | Kent Hance (D) 53.2% George W. Bush (R) 46.8% |
| Texas 20 | Henry B. Gonzalez | Democratic | 1961.0 | Re-elected | Henry B. Gonzalez (D) Unopposed |
| Texas 22 | Robert Gammage | Democratic | 1976.0 | Lost re-election Republican gain | Ron Paul (R) 50.6% Robert Gammage (D) 49.4% |
Question:
Name the result when the incumbent was george h. mahon
Answer:
Retired Democratic hold