Political ad spending is off to a slower-than-expected start, and it will be up modestly over the last mid-term elections, in 2010. Bill Cromwell reports a recent report from Magna Global forecasts spending will hit $2.3 billion on spot television, up 5% over 2010 but off slightly from Magna’s previous forecast. That total is down 18% from the presidential election in 2012, Cromwell notes.