Keep in mind that the SEIU gave Barack Obama $28,000,000--more than any other organization-- to win the White House. Keep in mind that SEIU President Andy Stern has visited the White House more times--53 times--than any other individual since Barack Obama's inauguration.
Here is your link to the May Day march, with a hat tip to Ed Driscoll at Instapundit. You don't need to read anything--it is full of great links though-- just study those pictures.
With evidence like this, voters need to know that, in Barack Obama, the Democratic Party is toying with the potential destruction of the United States as we know it.