US President-elect Donald Trump on Friday pledged that his administration “will do everything” to keep the scourge of terrorism out of America, and called for uniting the country by rejecting bigotry and prejudice. Kicking off his first post-election victory rally from the key battle ground State of Ohio, Trump mentioned about the recent car-and-knife attack at Ohio State University saying it “fully illustrates” the security problems caused by “stupid politicians” and an immigration system that fails to screen out dangerous, would-be terrorists.