 Fox News. President Biden will also be campaigning this week, as Republicans gather, critical of his policies. But in an Oval Office address last night, he said everyone has to cool down the heated rhetoric. Politics must never be a literal battlefield, a God forbid, a killing field. The president also ordered a national security review that the head of Secret Service says they will fully participate in. The agency is going to brief the House Oversight Committee today as lawmakers question what went wrong in Pennsylvania Saturday, how the assassination attempt was not prevented.