Many people seem ready to blame Desiree Rogers, who heads up the social office, for the security lapse. Hasn't the Secret Service already admitted fault? This is just politics as usual. At every turn, the goal of the republicans is to discredit the White House in any way possible. No republican really cares if Obama's life could've been in danger. The only thing republicans care about is if they can make hay over this and score more political points for themselves.
There will be a hearing on Thursday. The party crasher creeps aren't required to testify but will be asked to testify. They'll probably testify so long as the cameras are rolling.