The State Department is on a mission to sell the Biden administration’s foreign policy as a local issue in cities across the United States — just in time for the 2024 election. Assistant Secretary of State for global public affairs William Russo completed a tour through Los Angeles and Phoenix this month, one of several such trips senior officials are taking. They’ve also been to Chicago, Pittsburgh and other cities, meeting with local officials, youth groups and think tanks. They are trying to promote one of President Biden and Secretary of State Antony J. Blinken’s campaign-era pledges: to make sure foreign policy is relevant to, and supported by, ordinary Americans. That support has become more urgent as the Biden administration sends billions of dollars in aid to Ukraine in its fight against an invading Russia, and as some Americans are questioning the effort.