An unusual strategy is quickly becoming a must for top presidential candidates

Earlier this week - 10 months before candidates for president of either party will be officially nominated - America saw a glimpse of a potential general-election fight, thanks to Twitter.

Former Florida Gov. Jeb Bush (R), taking exception to Democratic front-runner Hillary Clinton's college-affordability plan, tweeted back a repurposed Clinton campaign graphic. Clinton's campaign re-re-purposed that graphic, giving Bush an "F" on college affordability during his tenure as Florida's governor.

Then the Bush campaign repurposed Clinton's logo:

This is far from the first Twitter fight this cycle among presidential candidates, whose campaigns are increasingly tweeting at each other directly. The candidates rarely directly engage with each other on the campaign trail, but tweeting back and forth earns increased attention from supporters and the press alike.

Last week, for instance, Clinton took to Twitter first to condemn Bush's comments that he was "not sure we need half a billion dollars for women's health issues," a comment he was quickly forced to clarify.

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