President Joe Biden struggled to shake a persistent cough as he delivered his much-anticipated speech in favor of Gov. Gavin Newsom on the eve of the California recall election. Throughout his 14-minute speech, the president touched on a number of topics dear to progressives, from abortion to climate change, while closely linking Newsom opponent Larry Elder with former President Trump. While the president said nothing novel, his words were frequently interrupted by a lingering cough. The cough was especially glaring when he touted vaccine mandates: In Mississippi (*cough*), children are required to be vaccinated against measles, mumps, rubella, chickenpox, hepatitis...