Landrieu says Biden has no concerns 'about his mental fitness'

USA TODAY - For more and to sign up click here Lauren Sforza Mitch Landrieu, co-chair of President Biden's campaign, said the president does not have any concerns about "his mental fitness" despite some worries from voters. Landrieu responded to concerns some have about Biden's mental fitness to serve a possible second term in the White House on NBC's "Meet the Press." NBC's Peter Alexander pressed him on why…