NBA coaching is a fraternity, so when one of your peers runs for public office, you should support them. The same applies when they are not running for public office, but somebody is making T-shirts as if they are.
To wit, Los Angeles Lakers head coach Luke Walton has hopped aboard the Popovich-Kerr 2020 train, a faux campaign that probably really does hope (along with possibly millions more) that San Antonio Spurs boss Gregg Popovich and Golden State Warriors coach Steve Kerr indeed run for the White House in three years.
Walton, of course, is a tireless soldier for Kerr's cause. Last season, he filled in as Warriors coach for 43 games while Kerr was dealing with back issues. And while he didn't get credit for the 39 wins the Dubs registered under his leadership, in the true spirit of meritocracy he was rewarded as head coach of the Lakers.
On a serious note, the Popovich-Kerr 2020 project is donating all net proceeds from sales of apparel to six organizations: The ACLU, the Council on American-Islamic Relations, the International Rescue Committee, the Mexican American Legal Defense and Educational Fund, the NAACP Legal Defense Fund, and the Union of Concerned Scientists.