Donald Trump’s tariff tsar triggered a war of wars with Elon Musk, saying the Tesla owner does not manufacture cars but merely assembles them.

FIRST IN PLAYBOOK — Matt Hayward is joining Groundwork Collaborative as director of government affairs and senior strategist.

Spectrum Science, a 2024 MM+M Agency 100 honoree, hired Jill Beene as president of advertising and consulting, Lauren Ankeles as EVP of operations and transformation, as well as Natalie Newman as ...