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 | Elected | Status | 2008 Candidates | Results |
| --- | --- | --- | --- | --- | --- | --- |
| Washington 1 | Jay Inslee | Democrat | 1998.0 | Running | Jay Inslee (D) (cw) Larry Ishmael (R) (cw) | 68% 32% |
| Washington 2 | Rick Larsen | Democrat | 2000.0 | Running | Rick Larsen (D) (cw) Rick Bart (R) (cw) | 62% 38% |
| Washington 3 | Brian Baird | Democrat | 1998.0 | Running | Brian Baird (D) (cw) Michael Delavar (R) (cw) | 64% 36% |
| Washington 4 | Doc Hastings | Republican | 1994.0 | Running | Doc Hastings (R) (cw) George Fearing (D) (cw) | 63% 37% |
| Washington 5 | Cathy McMorris | Republican | 2004.0 | Running | Cathy McMorris (R) (cw) Mark Mays (D) (cw) | 65% 35% |
| Washington 6 | Norm Dicks | Democrat | 1976.0 | Running | Norm Dicks (D) (cw) Doug Cloud (R) (cw) | 67% 33% |
| Washington 7 | Jim McDermott | Democrat | 1988.0 | Running | Jim McDermott (D) (cw) Steve Beren (R) (cw) | 84% 16% |
| Washington 8 | Dave Reichert | Republican | 2004.0 | Running | Dave Reichert (R) (cw) Darcy Burner (D) (cw) | 53% 47% |
Question:
How many groups of candidates are there in there in the district where the incumbent is Doc Hastings?
Answer:
1.0