Donna Brazile: A crucial reminder that political opponents aren't enemies

The attempted assassination of former President Donald Trump, which thankfully left him with only a small wound to his ear, horrified me and reminded me of two assassinations that changed my life in 1968 when I was only eight.  

I was shocked when my hero, the Rev. Martin Luther King Jr., was shot dead in Memphis in April. Crying myself to sleep and praying for his family, I promised myself I would devote my life to the Civil Rights Movement and to making America a more just and equitable society for everyone.