"I'm doing something. You know, people can complain about the government all they want, but you see very few people actually attempting to do anything," Ryan Shepard said of running for president. Sean McGinnis Scanlon/Courtesy of Shepard 2016 Campaign hide caption

itoggle caption Sean McGinnis Scanlon/Courtesy of Shepard 2016 Campaign

"Who, me? Run?" Would-be presidential candidates are ditching "testing the waters" and "exploratory committees" to hold onto unlimited and undisclosed cash for longer. LA Johnson/NPR hide caption

itoggle caption LA Johnson/NPR

Canadian athletes hold up the national flag during the 2014 Winter Olympics in Sochi, Russia. Sen. Ted Cruz was born in Calgary, and some question his eligibility to run for president in the U.S. Darron Cummings/AP hide caption

itoggle caption Darron Cummings/AP

Sen. Ted Cruz, R-Texas, arrives Sunday for a walk-through for his Monday speech at Liberty University in Lynchburg, Va., in which he is expected to formally launch his campaign for president. Andrew Harnik/AP hide caption

itoggle caption Andrew Harnik/AP

Sen. Ted Cruz, his wife, Heidi, and their two daughters Catherine (left) and Caroline practice waving on stage at Liberty University before Cruz's Monday presidential campaign launch. Andrew Harnik/AP hide caption

itoggle caption Andrew Harnik/AP

Polls show changing American opinion on marijuana, and it's having an effect on politics. Leon Neal/AFP/Getty Images hide caption

itoggle caption Leon Neal/AFP/Getty Images

Former Florida Gov. Jeb Bush speaks to members of the media during a two-day swing through Iowa that had all the trappings of a presidential campaign. Charlie Neibergall/AP hide caption

itoggle caption Charlie Neibergall/AP

Republicans in Congress are no fans of FCC Chairman Thomas Wheeler's "net neutrality" plan. Jose Luis Magana/AP hide caption

itoggle caption Jose Luis Magana/AP

Sen. Rand Paul, R-Ky., center, meets with members of the Londonderry Fish and Game Club in Litchfield, N.H., on Jan. 14. Paul was one of three GOP presidential hopefuls who attended Sunday's semiannual gathering of David and Charles Koch's donor network in California. Jim Cole/AP hide caption

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Sen. Rand Paul (R-Ky.) greets supporters during a tea party rally in front of the U.S. Capitol in June. Paul was a rising star in the tea party movement this year, filibustering a CIA nomination in March. Mark Wilson/Getty Images hide caption

itoggle caption Mark Wilson/Getty Images

Sen. Ted Cruz's anti-Obamacare strategy seemed to fall flat Tuesday with many of his fellow Senate Republicans. They urged him to back down out of concern over a possible government shutdown next week. C-SPAN.org screen shot hide caption

itoggle caption C-SPAN.org screen shot