Donald Trump, current Republican presidential candidate - Now leading the polls in the Republican race for the 2016 presidential nomination, Donald Trump has at one time considered himself a Democrat, an Independent and a member of the Reform Party. He has made contributions to campaigns of both Republican Party and Democratic Party candidates and was an early supporter of President Reagan. After years of talking about a run for president, he ran for the nomination of the Reform Party in 2000, winning the party's California primary. While he continues to make waves in the Republican Party, Trump has still maintained a willingness to run as an Independent if he doesn't receive the Republican nomination in 2016.
Pat Robertson, second left, the founder of Christian Broadcasting Network and the chancellor of Regent University, listens to GOP presidential hopeful Mitt Romney, the former governor of Massachusetts, deliver the commencement address to the 2007 graduating class of Regent University in Virginia Beach, Va., Saturday, May 5, 2007. (AP Photo/Gary C. Knapp/File)
With Donald Trump's presence, candidates will have to go where no previous GOP hopefuls have gone — not because they want to, not because they no longer fear to, but because The Donald has introduced extreme politics to the quadrennial ritual of finding an acceptable party nominee. (Associated Press)
The ascendancy of Republican presidential candidate Donald Trump may result in several of the previously declared GOP candidates being bumped from the upcoming Fox News debate due to a limit of only 10 candidates being allowed to participate. (Associated Press)
Republican presidential hopeful Donald Trump holds up a sheet of paper as he talks about calling fellow GOP presidential candidate Lindsey Graham during his South Carolina campaign kickoff rally in Bluffton on July 21, 2015. (Associated Press)
Ohio Gov. John Kasich, center right, stands with his wife Karen, and daughters Reese, right, and Emma, after announcing his running for the 2016 Republican party’s nomination for president during a campaign rally at Ohio State University, Tuesday, July 21, 2015, in Columbus, Ohio. Kasich, a two-term governor and former congressman, has little name recognition in the crowded GOP field, but he is already airing television ads in New Hampshire where he is heading immediately after making his run official. (AP Photo/John Minchillo)
The Democratic National Committee released a new video Thursday that mocks the GOP as the "Retrumplican Party" and ties the entire Republican presidential field to comments made by Donald Trump. (YouTube/DemRapidResponse)