First day of convention muted by Isaac (in Tampa and on Twitter)

Chris Wilson
The Signal

TAMPA -- As an equivocating rain peppers the Republican convention, the discussion both on the ground and in cyberspace never wanders far from the tropical storm heading for New Orleans. While Isaac spared Tampa the brunt of its winds and rain, it has collided head on with the Romney campaign's optics.

On Monday morning, for example, the hashtag "#isaac" was mentioned five times as often as "#rnc," according to the Signal's analysis:

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Stay tuned for more updates on how this logistical tangle is playing out online and on the ground.