Donald Trump hit by campaign shakeup just 3 weeks before convention speech

Just three weeks before he is set to officially claim the Republican presidential nomination, Donald Trump was hit with another staff shakeup as his campaign struggles to expand in advance of what is expected to be a bruising general election campaign against Hillary Clinton. Kevin Kellems, a veteran GOP strategist and former aide to Vice President Dick Cheney, abruptly resigned from the Trump staff Thursday, less than two weeks after he was hired to help oversee the campaign’s surrogate operations. The latest departures come as Trump has tried to steady a campaign operation that has been shaken by internal drama and outside turmoil, including the candidate’s own missteps.