Rush Limbaugh has never been subtle in his dislikes, but this week he even shocked his own listeners when he compared President Obama to Adolf Hitler.

In an already heated political season where the Obama campaign hasn't been coy about highlighting Mitt Romney's multiple offshore bank accounts, his years of hidden tax returns or his controversial private sector history at Bain Capital, Limbaugh's charge raised eyebrows.

In his attempt to defend Romney, whom he has frequently expressed mixed feelings about, Limbaugh clearly felt he had to turn the rhetoric up to maximum broil this week to inspire his fellow conservatives to rally around his candidacy.

'Propaganda versus truth, which wins?' Limbaugh mused on his show, according to the Examiner.

'Well, what did...what was Hitler more concerned with? Propaganda. Did Hitler succeed for a time? Yeah, he did. What was Clinton more concerned with? Truth or propaganda? What's Obama more concerned with? Truth or propaganda? Who would you say is winning? Is propaganda winning or truth winning? We, the virtuous ones in our society, we think truth wins. We have this investment in the truth. We think it's holy. We think that it is profound, and we think it's persuasive.'

Limbaugh is known for outlandish attention seeking claims and this is not the first time the portly political pundit has compared President Obama to Hitler.

He also famously attacked Georgetown law student Sandra Fluke this year, comparing her to a 'prostitute' for advocating on behalf of womens' sexual health.

Limbaugh has also scoffed that national economic failure is the Democratic party's 'wet dream.' He has also controversially stated that President Obama dislikes and resents the American experience.