Basically he's a nothingburger. He doesn't help Harris in any substantial way because he's just a stock standard progressive Governor slightly to the right of Gavin Newsom. He's on board with all her same policy positions and I guess makes people "feel better" because he's an old white dude (skin color is all that matters after all), kinda like what Obama did with Biden.
I think most notably for people nationally are his
dismal response to the George Floyd riots in Minneapolis-St. Paul. You could say that had Walz taken a tougher stance to the lawlessness, the riots might not have spread around the country like they did. Also, his government has been wracked by
financial mismanagement scandals since he took office in 2018. While a Veep doesn't have much to do with financial policy, I think the level of incompetence he's shown as a Chief Executive is rather telling.
I think the more important story is why didn't Harris pick Josh Shapiro of Pennsylvania? He was the odds on favorite, it just made more sense. While Shapiro has much the same progressive bona fides as Walz, he's a bit younger, more charismatic and would have helped lock up a battleground state. My suspicion is that the Harris campaign is afraid of the loud, violent, extremist wing of their party who occupy college campuses, stage protests on freeways, and scream '
From the River to the Sea'.
Being Jewish and having expressed support for Israel's defense against Hamas, Shapiro has been deemed toxic in national Democratic politics right now (and yes, I know that Harris's husband is Jewish). So they went with Walz to pander to the base and keep the bubbling civil war in the DNC out of the headlines during the election. I think that tells you a
lot about the Harris campaign and where their priorities lie and its rather ugly.