With Vice President Kamala Harris’ ascent to the top of the Democratic ticket, Republicans are rebuilding a campaign strategy that for months focused on running against President Joe Biden. One emerging theme asserts that Harris laughs too much at inappropriate moments – part of a broader argument that Harris is “weird.” “I call her ‘laughing Kamala,’” former President Donald Trump said at a rally in Michigan on July 24. “Have you ever watched her laugh? She is crazy. You can tell a lot by a laugh. … She is nuts.” As a professor of American studies with a focus on race and politics, I know tha…