WASHINGTON — Sen. Lindsey Graham is disgusted with the Republican Party’s embrace of Donald Trump: “My party has gone bat (expletive) crazy.” In no-holds-barred remarks at a celebratory dinner Thursday night, the South Carolina senator and unsuccessful presidential candidate said the Republican Party has lost all semblance of sanity and predicted the party will suffer irrevocable losses in November if it backs Trump. Graham said the Republican Party has its best chance in years to win as Democrats are likely to nominate Hillary Clinton, who has been damaged by questions about her trustworthiness.