Innuendo involves the use of language that implicitly suggests a claim without actually asserting the claim. All the audience has to do is "read between the lines." This enables a speaker or writer to influence us to believe something without having to go on record as endorsing it.
Example #1:
Here, Obama talks about some of Romney’s plans and then interrupts with, “I have a different view.” He then goes on to say, ”I think we have to invest in education and training. I think it’s important to develop new sources of energy in America.” This suggests implicitly that Romney does not want to invest in education or new energy sources. Of course, we haven't been given any reason here to think this is true.
Example #1:
Here, Obama talks about some of Romney’s plans and then interrupts with, “I have a different view.” He then goes on to say, ”I think we have to invest in education and training. I think it’s important to develop new sources of energy in America.” This suggests implicitly that Romney does not want to invest in education or new energy sources. Of course, we haven't been given any reason here to think this is true.
Example #2:
In this ad, Mitt Romney says we "should measure our compassion by how many of our fellow Americans are able to get good paying jobs, not by how many are on welfare.” Romney is implying that Obama's does measure compassion by the number of Americans on welfare. We expect this would be a "straw-man" misrepresentation of Obama's view in the first place, but in not actually asserting this claim and subjecting it to scrutiny, Romney might be able to subtly influence people to believe it anyway.