after a year of russian brutality and ahead of an expected counteroffensive. the mayor of kyiv will join us live this hour. welcome to our viewers here in the united states and around the world. i m wolf blitzer. you re in the situation room. we begin this hour with president biden making his 2024 plans official, and making the case that he deserves a second term. cnn s phil mattingly reports on the president s big announcement and how trump figured into his message. four more years! four more years! reporter: president biden is officially in. this is not a time to be complacent. that s why i m running for re-election. reporter: a short campaign-style video timed four years to the day after this 2020 campaign launch. we have to remember who we are. this is america. reporter: the launch heavily and intentionally featuring vice president kamala harris and telegraphing a campaign strategy crafted to sharpen attacks on national republicans. around the country ma