Speculation on Replacing Biden with Michelle Obama or Kamala Harris

Day two of the 2024 Republican National Convention was informally about the runners-up. Former South Carolina Governor Nikki Haley and Florida Governor Ron DeSantis were two of the notable speakers. Each pledged their full support for the Trump/Vance ticket, urging even those who don't see eye-to-eye with the former president on every single issue to follow suit. But is the message of unity merely a facade? Playbook co-author Ryan Lizza and Politics Bureau Chief Jonathan Martin caught up with Sen. Ted Cruz (R-T.X.), the 2016 runner-up, to ask just that, and more.