National Convention
Following a victory in the Washington Republican primary, Trump traveled to New Mexico, where the sitting Republican governor Susana Martinez snubbed his event. Trump attacked Martinez during the rally, later asking, "If I have a Republican that’s not on my side, why should I be particularly nice to that person?" Shortly thereafter, during a speech in California, he renewed attacks against Romney, Cruz, Kristol, and Jeb Bush. Former rival Marco Rubio announced he would release the delegates he won during the primary to support Trump and said he would be willing to go on the campaign trail for Trump, if asked. Rubio also apologized to Trump for derogatory comments he made earlier in the campaign. Trump mathematically secured the Republican nomination, when an uncommitted slate of delegates in North Dakota committed to supporting him. Meanwhile, the Libertarian Party commenced its 
 and nominated for president, on the second ballot, former New Mexico Governor Gary Johnson, the party's 2012 presidential nominee. Also on the second ballot, for vice president, the party nominated Johnson's pre-selected running mate, former Massachusetts Governor William Weld, who had just left the Republican Party to become a Libertarian. Trump called Johnson a "fringe candidate." Johnson was not the last such candidate introduced in late May. Seemingly ending his search for an alternative to Trump, Kristol tweeted that he had found an "impressive" independent candidate. Bloomberg reported the candidate was little-known writer David A. French of the "National Review". On the final day of May, Trump held a press conference in which he revealed the veterans charities he donated to after raising $5.6 million during a fundraiser he held in January in lieu of attending a debate. Trump excoriated the national press for its coverage of his campaign and referred to one reporter as "sleaze." With the June 7 California primary ahead, Clinton received the endorsement of California Governor Jerry Brown. The latest polls showed her with a two point advantage over Sanders in the state. In the Real Clear Politics average, she led Trump in the general election nationally by 1.5%.
On the campaign trail in the USA, May 2016