President Joe Biden on Wednesday announced that he will nominate Cindy McCain to serve as U.S. ambassador to the United Nations Agencies for Food and Agriculture, the White House said. McCain, the widow of longtime Sen. John McCain (R-Ariz.), has a relationship with Biden that has spanned for decades and also endorsed the president during the 2020 election. “I am deeply honored and look forward [sic] the work ahead,” McCain said on Twitter. Besides McCain, the Biden administration announced in a statement that the president intends to nominate over a dozen individuals to serve “key” roles if confirmed. Jack Markell, the former Democratic governor of Biden’s home state of Delaware, is among 17 nominees set to serve multiple roles. If confirmed, Markell will become the U.S. ambassador to the Organization for Economic Cooperation and Development. Others include Claire Cronin, the nominee for U.S. ambassador to Ireland, and Michael Carpenter as U.S. ambassador to the …