(CNN) -- Republicans raised the question in their convention of whether the country is better off than it was when President Barack Obama was elected, and it doesn't seem that Democrats have a convincing argument going into their convention this week. Both Republican presidential candidate Mitt Romney and his running mate Paul Ryan had a variation on the theme in their acceptance speeches last week in Tampa, Florida. Romney: "This president cannot tell us that you're better off today than when he took office." Ryan: "Without a change in leadership, why would the next four years be any different from the last four years?"
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Obama advisers won't answer yes or no on whether voters are better off than in 2008
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Head of Democratic governors' group says voters aren't better off -- but that's not the question
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Republicans raised the question during their convention last week
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Obama is on a tour of college campuses ahead of his party convention this week
"President Obama has allowed our leadership to diminish," @placeholder said in that speech.