WASHINGTON POST: … The $5 trillion figure comes from the fact that Romney has proposed to cut tax rates by 20 percent and eliminate the estate tax and alternative minimum tax. The nonpartisan Tax Policy Center says that would reduce tax revenue by nearly $500 billion in 2015, or about $5 trillion over 10 years
But Romney also has said he will make his plan “revenue neutral” by eliminating tax loopholes and deductions, although he has not provided the details.
The Tax Policy Center has analyzed the specifics of Romney’s plan thus far released and concluded that the numbers aren’t there to make it revenue neutral… (more)