.........Their conflicted feelings are important because experts say the state's 6th Congressional District is a barometer of national opinion. "If there is a bellwether district with an incumbent sitting in it, I would pick this district," said Amy Walters, who analyzes House races for the Cook Political Report, a nonpartisan organization based in Washington. No neat political categories The congressman, Republican Rep. Jim Gerlach, won a second term with 51 percent of the vote in 2004, as the district narrowly voted for Democrat John Kerry in the presidential race. While partisanship in Washington has reached a fevered pitch, many of...