Minnesota Gov. Tim Walz used his first speech as Vice President Kamala Harris’ running mate at Monday’s rally in Philadelphia to tear into former President Donald Trump, and everything he stands for. “Minnesota’s strength comes from our values, our commitment to working together to seeing past our differences, to always being willing to lend a helping hand,” said Walz. “Those are the same values I learned on the family farm and tried to instill in my students. I took it to Congress and to the state Capitol. And now Vice President Harris and I are running to take those very values to the White …