Read More... “Last Week Tonight” host John Oliver, guesting on Stephen Colbert’s post-DNC “Late Show” on Wednesday, professed his love for Democratic vice presidential nominee Tim Kaine. Kaine had a primetime speaking spot ahead of Vice President Biden and President Obama at the convention on Wednesday. The greatest takeaway from his speech seemed to be his truly terrible impression of GOP nominee Donald Trump. “If he’s gonna be America’s step-dad, that was an exemplary performance,” Oliver said of Kaine’s speech.