SAN FRANCISCO (KPIX 5) — A Bay Area civil rights attorney is calling for a boycott of the San Francisco Giants after their principal owner Charles Johnson made donations to the campaign of a controversial U.S. Senate candidate in Mississippi.

President Trump announced that he will be traveling to Mississippi on Monday to endorse Republican Cindy Hyde-Smith. In a tweet, Trump called her “an outstanding person.”

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Hyde-Smith has been at the center of controversy for making a recent joke about public hanging.

It was reported that she also wore a Confederate hat while visiting a museum for Confederate president Jefferson Davis.

Johnson, who lives in Florida, had previously apologized a few months ago after supporting a Republican Super PAC which was proven to be making racist radio ads. At the time, Johnson said he didn’t realize that’s what the group was doing.

John Burris, a civil rights attorney, says he is a huge fan, but that it’s time for Giants fans to withdraw their support for the Johnson and team amid the controversy.

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“I would encourage everyone who has social conscience about the condition that exists in this country to boycott the Giants as long as this person is a principal owner,” said Burris.

Burris also said he would not be willing to accept an apology from Johnson the second time around.

KPIX 5 spoke to fans near AT&T park about the matter, but they weren’t quite ready to completely boycott their home team.

“Boycotting seems a bit extreme… but is it extreme compared to a public hanging? I think not,” said a fan.

Major League Baseball also recently made a $5,000 donation to Hyde-Smith but has since rescinded their donation due to the corresponding backlash, according to ESPN.

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KPIX 5 reached out to the Giants for comment, but they didn’t respond. More details may arise Monday as Burris makes a public announcement of his planned boycott.