While Texas has been long considered an unremittingly "red" state, having last voted for a Democratic-presidential-candidate in 1976, voter-registration drives have had resounding success in the last four years, with registration in the six largest counties increasing by 373,281 since 2012. Texas had the worst voter-turnout of any state in 2010. To see what this might portend for presidential-elections: savvyroo.com/chart-1259884984…