A "futures market" reading from Rasmussen Reports projects presidential election winners based on "trades" made by the site's users.
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Homeland Security Secretary Jeh Johnson said he has directed Transport Security Administration to revise security procedures.
Many of the proposed rate increases of 10 percent or more for Obamacare health insurance plans have been revealed.
Lindsey Graham announced he is entering the race for the presidency, expanding the Republican field to nine candidates.
Proposals to deal with a potential Supreme Court ruling could merely delay serious disruption to the insurance market.