Jeb Bush and his allies have spent the most on advertising in South Carolina, the next state to cast votes after New Hampshire.The pro-Bush super PAC Right to Rise USA has shelled out $10.3 million on South Carolina ads, according to NBC News/SMG Delta. Florida Sen. Marco Rubio and allies have spent a combined $9.4 million on ads in the state while Ted Cruz and his team have spent $5.7 million on advertising there.