LAS VEGAS (AP) — Political newcomers are trying to turn a Republican-held southern Nevada swing congressional district back to Democratic hands. The Democratic candidates seeking the 3rd Congressional District seat include a synagogue leader favored by Sen. Harry Reid, and an attorney defined recently by a flap with the powerful lawmaker. [...] Rabbi Sanford Akselrad described Rosen as a master networker who improved the finances of Ner Tamid synagogue in Henderson and ushered in a money-saving rooftop solar installation while holding the volunteer post. Reid recruited and endorsed political newcomer Rosen to run as a Democrat in Nevada's 3rd Congressional District after several others turned down a bid. With Heck leaving to run for U.S.