<http://schema.org/description>
"Republican Senators Marco Rubio of Florida and John McCain of Arizona are expected to hold off primary challengers Tuesday, but Donald Trump&amp;#x27;s polarizing presidential run is putting them more at risk than expected in the general election."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.reuters.tv/v/MYz/2016/08/30/rubio-and-mccain-face-voters-in-tough-primaries>