The Guardian view on Kamala Harris’s vice-presidential pick: Tim Walz is a smart choice for Democrats | Editorial

The impact of running mates shouldn't be overstated, but Kamala Harris's selection of the progressive governor of Minnesota is good news

Kamala Harris's own ascension to the top of the ticket has shone a brighter spotlight than usual on the Democrats' choice of vice-presidential nominee, underlining why the second slot on the ticket matters. The impact of the running mate is usually limited unless they prove extraordinarily popular or unpopular. Growing concerns about the state of the US economy are likely to be far more consequential. But Ms Harris's selection of Minnesota's governor, TimWalz, on Tuesday, and the enthusiasm it is engendering, contribute to the sense of a rejuvenated campaign. Democrats are not taking poll improvements for granted, but now believe that it is possible to beat Donald Trump.

Ms Harris stressed Mr Walz's record of fighting for middle-class families". Originally from rural Nebraska, he is a former teacher and high school football coach who served in the army national guard for 24years. As governor he has overseen - with Minnesota's Democratic legislature - progressive policies including free school meals, abortion protections, pro-worker policies and gun restrictions. He has a better record on facing the climate crisis than rivals.