LOUISVILLE, Ky. — Senator Rand Paul of Kentucky declared himself a candidate for the Republican nomination for president on Tuesday, aiming to upset the political order in Washington and disprove those in his own party who doubt that a fiercely libertarian conservative can be a serious contender.
“I am running for president to return our country to the principles of liberty and limited government,” Mr. Paul wrote in a post on his website on Tuesday.
Mr. Paul’s brand of politics could make him both an outlier and a target among his rivals. In a primary contest of candidates debating which of them is the most doctrinaire conservative, Mr. Paul is likely to be the only one arguing for reducing federal drug penalties, clamping down on the nation’s intelligence agencies and taking a more deliberative approach to military intervention.
On social issues like abortion and same-sex marriage, however, he does not stray from the Republican Party line.
