the United States will likely miss President Joe Biden's goal of having 70% of adults partially or fully vaccinated by July 4, White House COVID-19 Response Team Coordinator Jeff Zients said during a press conference on Tuesday ... Zientz said that 70% of Americans aged 30 and older had gotten at least One COVID-19 vaccine, but estimated that it could take a "few extra weeks" to have 70% of all adults 18 and older get at least One COVID-19 vaccine shot ... "the reality is that many younger Americans have felt like COVID-19 is not something that impacts them, and they have been less eager to get the shot," he said.