During his State of the Union address, President Trump awarded radio host Rush Limbaugh the Presidential Medal of Freedom. A lightening rod of controversy for three decades, many subsequently questioned whether or not Limbaugh had earned the nation's highest civilian honor. Many names of those who have received the award in the past will long be remembered as some of the greatest men and women of their generations. But the merit of other previous recipients has occasionally been called into question. Whether or not Limbaugh stacks up against them will be debated for some time.