Home Depot store
A sign is posted in front of a Home Depot store in El Cerrito, California. Justin Sullivan/Getty Images

A boycott is mounting against another major retail chain after one of its founders has thrown his support behind President Trump's re-election campaign.

Billionaire Bernie Marcus, 90, who co-founded Home Depot in 1979, recently said he would be giving most of his wealth to charity but would also continue to support Trump's campaign after contributing $7 million in 2016. He felt that Trump’s work in the White House has paid dividends with employment and supports his aggressive stance when it comes to dealing with Iran and China.

In June, Marcus told the Atlanta Journal-Constitution that he didn't fully agree with Trump but that the president has "produced more than anybody else" and that the country has been "better off today than we were eight years or six years ago."

Twitter users immediately began blasting Marcus for his comments, while advocating for cutting up their Home Depot cards and shopping at the home improvement retailer's competitors.

The hashtag #HomeDepotBoycott has been one of the top trending topics on Twitter.

Some don’t entirely agree with the stance.

And some just can't be bothered.

“Bernie retired from The Home Depot more than 15 years ago and isn’t speaking on behalf of the company,” Home Depot said in a statement. “In fact, as a standard practice, the company does not endorse Presidential candidates.”

While Marcus no longer serves as Home Depot’s chairman, he still has significant shares in the company that makes up most of his $5.9 billion fortune.