'Rigging' US election easier said than done, experts say Republican candidate Donald Trump has made the insistent claim that the US presidential elections are being "rigged," but experts say massive voter fraud is highly unlikely in a system as decentralized as the United States. Scott Thomas, a lawyer who specializes in election law and a former Federal Election Commission Chairman, says that the US has "never seen anything close to" the type of "massive organized conspiracy" something like this would require. IMAGES AND SOUNDBITES