For doing long term damage it would be hard to make a case that anyone was worse than Reagan. The bait and switch that he pulled saying that tax cuts that stimulate the economy when it was in fact the unprecidented increases in spending, the iniation of deficit spending and the war he started between the politicians and the actual government. The bumbling in foreign policy including the mess he created in eastern Europe. We are still paying for his misplaced priorities and his childish, stupid simplistic ideologies. Just as we will be paying for his disciple, Bush jr. in 30 years. Eisenhower, Nixon and Bush I, at least, were pragmatists and grown ups.
Obama had two choices when he came in. Increase the deficit to try to minimize the damage Bush had done or preside over another great depression.
Reagan worshippers are stubborn enough to choose the latter rather than abandon their misplaced ideology. The USA would be far better off if objective economics were mandatory in the schools along with evolution and other non-"faith based" beliefs.