If you understand the Sandra Bland video, then you understand why #BlackLivesMatter. If you drive though a neighborhood, you might be thinking that all houses matter...but also seems a fairly banal thought if one of the houses that you're driving past happens to be ON FIRE. Personally, I still believe that Bernie Sanders has the best ideas for America of any candidate in a generation or two, but it was more than a little disappointing that he drove right past the burning building. Economic justice is not the same thing as...justice. That's why in the moment in Waller County, Sandra Bland was determined to make her life matter.

Hillary Clinton gets it....as a politician. (She stayed away from Phoenix, which managed to be clever and cowardly at the same time.) More than any of the 21 White House wannabes, she understands the importance of the African-American vote and the core issues that are important to them. And why wouldn't she? -- her husband was called "America's first black president," after all.

When Sanders was drawing headlines for big crowds in ultra-white locales like Maine or Minneapolis, Clinton was talking to folks in Ferguson. In the carefully rehearsed space of Facebook, the former Secretary of State asserted this week that "Black lives matter," and she followed up today with a post about the Sandra Bland case. "From what I've seen, the circumstances of this case are incredibly disturbing," Clinton wrote. She called for an investigation and called what happened a "tragic reminder of the ongoing systemic issues of race and justice in America that we must address with urgency, and we have to do more than talk — we have to take action."

That kind of response -- not to mention familiarity and loyalty -- is why Clinton has led among non-white Democrats by a margin as high at times as 72-to-5 percent. That standing may change by the time the Democrats get to Philadelphia next summer, but not by much. Given the still rising prominence of the "Obama Coalition" in American politics, it's also still hard not to imagine -- despite her awkward campaign style and her ethical foibles -- that with solid African-American support she'll be sworn in on Jan. 20, 2017, as the 45th POTUS...

...and America's "third black president."

But if elected, can Clinton "do more than talk"? Since she seems to have been thinking about the presidency for the last, oh, six decades or so, what's her plan for action? I just watched a woman named Sandra Bland spend 49 minutes under a Texas sun fighting to prove that her life mattered. Can any president pick up where she left off?