Today, hip-hop music has grown to be such a large part of mainstream culture that The Washington Post wrote "The politician's guide to how to be down with hip hop.", which draws reference to the use of hip hop culture in politics. The criticism of hip hop that was considered patriotic or even moral one generation ago, can make a politician seem "out of touch", especially with younger voters. Politician Mike Huckabee was viewed as being "out of touch" when he referred to Beyoncé as "mental poison" in his book: "God, Guns, Grits, and Gravy". In 2008, during Barack Obama's Democratic primary campaign against then-rival Hillary Clinton, he referenced Jay Z by doing his "Brush the dirt off your shoulder" motion in a rally and the audience erupted with support. The embrace of hip-hop has not occurred on party lines. Republican Senator Marco Rubio is a vocal fan of Tupac and Gangsta rap. Rubio said "In some ways rappers are like reporters... You had gang wars, racial tension, and they were reporting on that." Donald Trump (Republican), the 45th President of the United States, also leveraged hip-hop to his advantage during his 2016 election campaign. He occasionally quoted that rapper Mac Miller wrote a song called "Donald Trump", and that it has over 100,000,000 views.