DULUTH, Minn. - Rep. Tom Rukavina, DFL-Virginia, was arrested on a charge of driving under the influence. Rukavina, 54, was arrested on Highway 169 in Mountain Iron at about 1:30 a.m. Saturday after deputies saw him driving erratically, the St. Louis County Sheriff's Department said in a news release. He was cited for fourth-degree DUI after being given field sobriety tests. He took a blood-alcohol test at the county jail and registered 0.15. Rukavina was cooperative, Sheriff Ross Litman said. He was