Calling out Republicans; celebrating Democrats; tragic prescience

09:47

Looking at how candidates helped their campaigns in the two Democratic debates so far, Rachel Maddow looks at Mayor Pete Buttigieg calling out Republicans, Vice President Joe Biden praising the Obamacare and his fellow Democratic candidates, and Beto O'Rourke speaking out against Donald Trump's racism and praising the diversity of El Paso, which days later would suffer terrible tragedy at the hands of someone inspired in part by that very racism.