The Biden administration has a goal of 100 million coronavirus vaccinations in the first 100 days. That's a big number logistically, but many experts say it isn't enough. The federal government can mandate a vaccine rollout like this, but it's up to the states on how to execute this. Plus, how effective is the vaccine against new variants of the virus? And, historically black colleges’ shifting demographics. Guests: Kaiser Health News chief Washington correspondent Julie Rovner and Axios' Bryan Walsh and Russell Contreras.Credits: "Axios Today" is produced in partnership with Pushkin Industries. The team includes Niala Boodhoo, Sara Kehaulani Goo, Dan Bobkoff, Carol Wu, Nuria Marquez Martinez, Naomi Shavin and Alex Sugiura. Music is composed by Evan Viola. You can reach us at podcasts@axios.com.Go deeper: Biden floats prospect of 1.5 million vaccinations a day Moderna says vaccine appears to protect against new COVID-19 variants Harris' rise illustrates the evolution of HBCUs