CHICAGO (AP) — Minnesota Gov. Tim Walz accepted his party's nomination for vice president Wednesday night, using his Democratic National Convention address to thank the packed arena for “bringing the joy” to an election transformed by the elevation of his running mate, Vice President Kamala Harris. “We’re all here tonight for one beautiful, simple reason: We love this country,” Walz said as thousands of delegates hoisted vertical placards reading “Coach Walz” in red, white and blue.

Many Americans had never heard of Walz until Harris made him her running mate, and the speech was an opportunity to introduce himself. He leaned into his experiences as a football coach, his time in the National Guard and his recounting of his family's fertility struggles — all parts of his biography that Republicans have questioned in the days since Harris picked him. While it's unclear if the speech will attract new voters, he further charmed Democratic supporters with his background and helped to balance Harris’ coastal roots as a cultural representative of Midwestern states whose voters she needs this fall.

The Harris campaign said Walz had worked on his speech for multiple days and he used a teleprompter for the first time, practicing to ensure he was prepared. He told the crowd, “I haven’t given a lot of speeches like this but I’ve given a lot of pep talks." “Some folks just don’t understand what it takes to be a good neighbor,” Walz said.

“Take Donald Trump.