46% William R. Keating (D)
43% Jeffrey D. Perry (R)
If respondents who are only leaning to a candidate are left out, Perry has a slight lead, 41 percent to 40 percent.
In either case, the results are well within the poll’s margin of error of 4.9 percent.
“What the poll shows is that it’s wide open,’’ said Steven Koczela, the president of MassINC Polling Group, which conducted the survey of 400 likely voters between Oct. 13 and Oct. 15. The 10th District covers the South Shore from Quincy to Plymouth and Cape Cod. Keating and Perry are running to replace US Representative William D. Delahunt, Democrat of Quincy, who is retiring after seven terms.
http://www.boston.com/news/politics/articles/2010/10/18/survey_gives_keating_razor_thin_edge_over_perry/