Nearly a quarter of respondents to a recent poll had an opinion on Political Science Professor Emily Farris, who is not running for anything. Courtesy Emily Farris hide caption

itoggle caption Courtesy Emily Farris

Former Florida Gov. Jeb Bush had a tough week with his changing positions on the Iraq War and trying to explain whether he would have authorized it, knowing what we know now. Ross D. Franklin/AP hide caption

itoggle caption Ross D. Franklin/AP

Candidates, and "un-candidates," for the presidency are slicing and dicing campaign-finance law, testing the boundaries of what's legal. TaxCredits.net via Flickr hide caption

itoggle caption TaxCredits.net via Flickr

Former Republican presidential nominee Mitt Romney and former heavyweight boxing champion Evander Holyfield face each other during an official weigh-in Thursday, ahead of their charity fight Friday. Rick Bowmer/AP hide caption

itoggle caption Rick Bowmer/AP

Republican presidential hopeful Sen. Marco Rubio, R-Fla., speaks Wednesday before the Council on Foreign Relations in New York, where he laid out his "Rubio Doctrine." Mary Altaffer/AP hide caption

itoggle caption Mary Altaffer/AP

Dream Action Coalition Co-director Cesar Vargas, at a news conference on Capitol Hill in 2014. He wants immigrants who were brought to the U.S. illegally as children to later be allowed to serve in the military. AP hide caption

itoggle caption AP

Jeb Bush continues to struggle to articulate a position on Iraq and separate himself from his brother's most unpopular policy. Ricardo Arduengo/AP hide caption

itoggle caption Ricardo Arduengo/AP

Texas Republican state Sen. Craig Estes' bill reinforces that clergy would not have to perform same-sex marriages. Harry Cabluck/AP hide caption

itoggle caption Harry Cabluck/AP

Then-President George W. Bush jokes with his brother Jeb, the then-Florida governor, in 2006. Jeb Bush has been asked before, and is sure to be again, how he would distinguish himself from his brother. Mari Darr~Welch/AP hide caption

itoggle caption Mari Darr~Welch/AP

Former President Bill Clinton campaigns before the 2014 elections for former Sen. Mark Pryor, center, and Mike Ross, right, the Democratic candidate for governor. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

When Mike Huckabee was governor of Arkansas, he tied a yellow ribbon around a bust of President Clinton at the Governor's Mansion. He said he would remove the ribbon when the federal government allows ARKids First to continue enrolling Medicaid-eligible applicants into the program. Chris Johnson/AP hide caption

itoggle caption Chris Johnson/AP

Texas Republican Gov. Greg Abbott ordered the Texas State Guard to monitor a joint U.S. Special Forces training taking place in Texas, prompting outrage from some in his own party. Eric Gay/AP hide caption

itoggle caption Eric Gay/AP

Ohio Gov. John Kasich, R-Ohio, is greeted after speaking at an event with activists and businesses in New Hampshire in March. Jim Cole/AP hide caption

itoggle caption Jim Cole/AP

Former Florida Gov. Jeb Bush's campaign dismissed the no-new taxes pledge as something "circulated by lobbying groups" and he says he "will not sign." David Goldman/AP hide caption

itoggle caption David Goldman/AP