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:
| Poll Source | Dates administered | Democrat: John Lynch | Republican: Joe Kenney | Lead Margin |
| --- | --- | --- | --- | --- |
| Survey USA | October 29–30, 2008 | 65% | 28% | 37.0 |
| Survey USA | October 4–5, 2008 | 67% | 24% | 33.0 |
| Strategic Vision | September 22–24, 2008 | 68% | 23% | 45.0 |
| Concord Monitor/Research 2000 | September 22–24, 2008 | 58% | 32% | 16.0 |
| Suffolk University | September 21–24, 2008 | 61% | 16% | 45.0 |
| University of New Hampshire | September 14–21, 2008 | 66% | 17% | 49.0 |
| American Research Group | September 13–15, 2008 | 62% | 31% | 31.0 |
| American Research Group | July 19–21, 2008 | 60% | 27% | 33.0 |
Question:
Name the most lead margin for republican joe kenney being 23%
Answer:
45.0