Decades-old GOP winning streaks are suddenly at risk

Democrats are running surprisingly competitive races in traditionally Republican territory across the country this midterm election cycle, and it's putting GOP winning streaks at risk that stretch as far back as the 1930s.Why it matters: Democrats hope ending political droughts in states such as Kansas, Texas and South Carolina will help make inroads in what has long been off-limits territory.Kansas - 1932Sen. Roger Marshall (R-Kansas) is facing a surprisingly tough challenge from Democrat Adam Hamilton, a Methodist pastor who has significantly outraised the incumbent GOP senator. The two are