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 |
| --- | --- | --- | --- | --- | --- |
| California 3 | John E. Moss | Democratic | 1952.0 | Re-elected | John E. Moss (D) 72.3% Ivaldo Lenci (R) 27.7% |
| California 4 | Robert L. Leggett | Democratic | 1962.0 | Re-elected | Robert L. Leggett (D) Unopposed |
| California 9 | Pete Stark Redistricted from the 8th district | Democratic | 1972.0 | Re-elected | Pete Stark (D) 70.6% Edson Adams (R) 29.4% |
| California 10 | Don Edwards Redistricted from the 9th district | Democratic | 1962.0 | Re-elected | Don Edwards (D) 77.0% John M. Enright (R) 23.0% |
| California 12 | Pete McCloskey Redistricted from the 17th district | Republican | 1967.0 | Re-elected | Pete McCloskey (R) 69.1% Gary G. Gillmor (D) 30.9% |
| California 17 | Bob Mathias Redistricted from the 18th district | Republican | 1966.0 | Lost re-election Democratic gain | John Hans Krebs (D) 51.9% Bob Mathias (R) 48.1% |
| California 23 | Thomas M. Rees Redistricted from the 26th district | Democratic | 1965.0 | Re-elected | Thomas M. Rees (D) 71.5% Jack E. Roberts (R) 28.5% |
Question:
How many parties won the election in the California 23 district?
Answer:
1.0