On the heels an attempt on his life, former President Donald Trump called Sunday for unity and resilience as shocked leaders across the political divide recoiled from the shooting that left him wounded but “fine.”. The Republican National Convention begins and is expected to nominate Donald Trump to be the official Republican contender for the presidency. We talk to Republican political consultant Matt Klink about what to expect and what the assassination attempt is likely to have on the election. And a look back at the history of U.S. presidential assassinations and attempted assassinations.