The stage is set for a Democratic party slaughter. The anti-incumbent sentiment and the high profile Tea Party movement is expected to cost the Democrats at least some seats during the mid-terms.
There have been some Tea Party rallies that had attendance of 10,000 or so which garnered national attention. The President spoke at this rally and people lined up about a mile to hear the President speak.
The Democrats have a larger reserve of voters than Republicans, but many expect republicans to be more apt to head out and vote this November. Therefore President Obama wants the message to get out there and vote to resonate to everyone.
The only media that covered the Obama Get out the Vote Rally in any sort of detail was MSNBC.