new york federal bureau investigation interview democratic u.s. presidential candidate hillary clinton three half hours saturday part probe use private email server serve secretary state campaign say interview fbi headquarter washington follow week intense public focus investigation clinton viability presidential candidate four months go election campaign try months downplay controversy distraction interview broadcast msnbc clinton say happy fbi interview spokesman early describe voluntary answer question year regard private email server clinton say clear question clinton signal imminent conclusion investigation pivotal time presidential race follow fbi interview several clinton former staff members well top aide huma abedin clinton expect formally nominate democratic candidate nov. presidential election party convention less four weeks time fbi interview primaries convention probably good time hillaryclinton tweet david axelrod former senior adviser president barack obama serve chief strategist two presidential campaign best get behind her clinton currently front-runner white house poll show lead presumptive republican nominee donald trump tweet saturday trump say impossible fbi recommend criminal charge hillary clinton wrong also criticize clinton husband former president bill clinton meet privately attorney general loretta lynch early week lynch late say regret though say discuss investigation bill stupid trump tweet fbi investigate whether anyone clinton operation break law result personal email server keep chappaqua new york home secretary state 2009 2013. one question whether mishandle classify information server clinton staff struggle respond accusations use server violation state department protocol mean untrustworthy trump say investigation disqualify president hillaryclinton campaign statement say voluntarily meet fbi 3.5 hours morning yeah lot people volunteer tweet republican national committee communications director sean spic fbi director jam comey say testimony congress march felt pressure complete investigation quickly add uncertainty clinton fbi refusal say target investigation republican lawmakers call independent investigation say trust justice department handle inquiry impartiality republicans include trump intensify criticism process thursday news emerge lynch meet bill clinton lynch say would accept whatever recommendations career prosecutors work case make whether prosecute clinton fbi probe partisan fight server add extra layer uncertainty one tumultuous presidential race recent memory trump political novice dismiss republican establishment likely emerge month party nominee set sight clinton label crook hillary clinton hold nine-point lead trump reuters/ipsos poll release friday fbi interview hillary clinton private server probe