David Frum makes a good point – from the moderate right:
By acceding to that pressure (…) Romney has transformed a campaign about jobs and growth into a campaign about entitlements and Medicare. Romney will now have to spend the next months explaining how and why shrinking Medicare after 2023 will create prosperity in 2013. Economic conditions are so tough—the Obama reelection proposition is so weak—that Romney may win anyway. But wow, the job just got harder.
Full column here.