President Volodymyr Zelenskyy, Sen. Chris Murphy, Former Vice President Mike Pence

This week on Face the Nation, the diplomatic dance between the US and Iran continues as Ukraine makes an impassioned plea for more help from the US.  We spoke exclusively with Ukrainian President Volodymyr Zelenskyy, who issued a warning. and made an urgent request for anti-ballistic missile weaponry from the US, whose supply is already stretched thin by with the war with Iran. Back home, as midterm match ups prepare for their November contests, does character count anymore when it comes to politics?  We talk with former Vice President Mike Pence as well as Connecticut Democratic Senator Chris Murphy, they both have new books out and they both have thoughts on the future of their respective political parties. We also hear from the outgoing head of the UN's World Food Programme, Cindy McCain on the difficulty of feeding the world in challenging times.