Republican Marsha Blackburn has surged to an 8-point lead over Democrat Phil Bredesen in a new CBS poll of Tennessee's U.S Senate race — a bounce that coincides with the nation's furious debate over the confirmation of Supreme Court Justice Brett Kavanaugh. The poll, released Sunday, found Blackburn, a conservative Williamson County congressman, with support from 50 percent of registered voters in Tennessee, compared to 42 percent for Bredesen, a former two-term Tennessee governor. It comes as the pollster says this race and others where Democrats are seeking to win in traditionally Republican states have "nationalized." The collection of polls...