What is the difference between those three campaigns videos of Obama , Mc Cain and Manigat ?

Response : If you are  candidate, people have the right to protest against you , you cannot send your security to beat them up  . Obama chose to speak with that protester , Mc Cain chose to shut up . Mirlande chose to send her her security to beat the protesters up ....... think about it

So please Manigat , please !!!!!!!!