The anatomy of lying by Mitt...this is what happens when you will do anything to win

Mitt has walked away from his signature achievement -- Romneycare -- as governor, and his entire time and record as governor, so anything is fair game.

From The Daily Dish, quoting Michael Cohen:

The United States has never been witness to a presidential candidate, in modern American history, who lies as frequently, as flagrantly and as brazenly as Mitt Romney. 

First, there is Romney's claim that the 2009 stimulus passed by Congress and signed by President Obama "didn't work". According to Romney, "that stimulus didn't put more private-sector people to work." While one can quibble over whether the stimulus went far enough, the idea that it didn't create private-sector jobs has no relationship to reality. According to the Congressional Budget Office, the stimulus bill created more than 3m jobs – a view shared by 80% of economists polled by the Chicago Booth School of Business (only 4% disagree). 

Romney also likes to argue that the stimulus didn't help private-sector job growth, but rather helped preserve government jobs. In fact, the Obama years have been witness to massive cuts in government employment. While the private sector is not necessarily "doing fine", as Obama said in a recent White House press conference, it's doing a heck of a lot better than the public sector. 

And the list goes on. Romney has accused Obama of raising taxes – in reality, they've gone down under his presidency, and largely because of that stimulus bill that Romney loves to criticize. He's accused the president of doubling the deficit. In fact, it's actually gone down on Obama's watch.