Would-be presidential candidates are ditching "testing the waters" and "exploratory committees" to hold onto unlimited and undisclosed cash for longer. Mark Wilson/Getty Images hide caption

itoggle caption Mark Wilson/Getty Images

An FDA field inspector in Los Angeles checks imported shrimp, February 2009. More than a dozen federal agencies play a part in keeping food from making Americans sick. Critics say that leads to a lack of coordination, a patchwork of rules and holes in the system. FDA hide caption

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Sen. Elizabeth Warren talked about 2016 to WBUR's Here & Now: "What I care about is that everyone who runs for president, who runs for any national office right now, talks about this core set of issues." Manuel Balce Ceneta/AP hide caption

itoggle caption Manuel Balce Ceneta/AP

After a car attempted to crash a gate outside the NSA Monday morning, Maryland state police blocked the freeway entrance that accesses the agency's headquarters in Fort Meade, Md. Patrick Semansky/AP hide caption

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Indiana Senate President Pro Tem David Long (left) and House Speaker Brian C. Bosma, both Republicans, discuss their plans for clarifying the Indiana Religious Freedom Restoration Act during a news conference today at the Statehouse in Indianapolis. Michael Conroy/AP hide caption

itoggle caption Michael Conroy/AP