Hardball with Chris Matthews 05/04/16

Trump 'confident' he can unite 'much' of the GOP

Donald Trump's final opponent, John Kasich, has suspended his campaign making the reality TV star and businessman the presumptive Republican nominee in the 2016 presidential race. Our Hardball Roundtable discusses this historic turning point and the battle to unite the fractured GOP. ... more Duration: {{video.duration.momentjs}}