LeBron James ` bum ' tweet led to racist messages , Cavaliers owner says . 
Cleveland Cavaliers owner Dan Gilbert has revealed that he received "vile , disgusting" voicemails after star LeBron James called President Donald Trump a "bum" on Twitter . 
James ' message last weekend came in response to Trump rescinding an invitation for the NBA champion Golden State Warriors to visit the White House . 
Gilbert said he had not told James about the voicemails . 
James also commended NFL players for protesting after Trump said owners should fire any players who kneel during the national anthem . 
Gilbert and James have patched up a complicated relationship . 
Gilbert infamously wrote a letter to Cleveland fans criticizing James for leaving as a free agent in 2010 . 
The owner was later fined $ 100,000 after he accused James of quitting in the playoffs during an interview with The Associated Press . 
Earlier this week , James said he did not regret his comment about Trump . 
"Me and my friends call me that all the time ," James said during a news conference prior to the opening of Cleveland 's training camp .
LeBron James ` bum ' tweet led to racist messages , Cavaliers owner says. Cleveland Cavaliers owner Dan Gilbert has revealed that he received "vile , disgusting" voicemails after star LeBron James called President Donald Trump a "bum" on Twitter. James ' message last weekend came in response to Trump rescinding an invitation for the NBA champion Golden State Warriors to visit the White House. Gilbert said he had not told James about the voicemails. James also commended NFL players for protesting after Trump said owners should fire any players who kneel during the national anthem. Gilbert and James have patched up a complicated relationship. Gilbert infamously wrote a letter to Cleveland fans criticizing James for leaving as a free agent in 2010. The owner was later fined $ 100,000 after he accused James of quitting in the playoffs during an interview with The Associated Press. Earlier this week , James said he did not regret his comment about Trump. "Me and my friends call me that all the time ," James said during a news conference prior to the opening of Cleveland 's training camp.