Two luminaries in the democratic socialist movement - one its national leader, the other its new star - are descending on solidly Republican Kansas on Friday, taking their emboldened liberal message to an unlikely testing ground before next month's congressional primaries. Vermont Sen. Bernie Sanders and Alexandria Ocasio-Cortez, who rose to fame following her surprise win in last month's New York congressional primary, see an opportunity to influence Democratic voters in Kansas ahead of the state's Aug. 7 primary.