Iowa's Democratic Party plans to use a new Internet-connected smartphone app to help calculate and transmit results during the state's caucuses next month, Iowa Public Radio and NPR have confirmed. Party leaders say they decided to opt for that strategy fully aware of three years' worth of warnings about Russia's attack on the 2016 presidential election, in which cyberattacks played a central role. Iowa's complicated caucus process is set to take place Feb. 3 in gymnasiums, churches, recreation centers and other meeting places across the state. As opposed to a primary in which voters cast ballots in the same way...