"I think that many of us understand that sometimes when we call for those kind of economic boycotts, the impact on some of our communities can be really tremendous, and so I want to examine that first," Rep. Donna F. Edwards, Maryland Democrat, said on "Fox News Sunday."
She gave the warning a day after civil rights groups held rallies nationwide to protest the acquittal of George Zimmerman while calling for a Florida boycott and the repeal of "stand-your-ground" laws, which allow people to use lethal force to defend themselves outside their homes.
In an interview last week with CNN, the Rev. Jesse Jackson called Florida an "apartheid state" and said he would consider launching an economic boycott if the Justice Department does not file federal charges against Mr. Zimmerman, who shot 17-year-old Trayvon during a scuffle last year in Sanford, Fla.
Singer Stevie Wonder announced last week that he would refuse to perform in Florida or any other state with a stand-your-ground law.
Three members of the Congressional Black Caucus told The Hill that they would support an economic boycott of Florida, but Ms. Edwards said Sunday that the caucus has not considered the matter.
"I don't think there's been a unanimous call within the Congressional Black Caucus. In fact, we haven't even discussed that in the Congressional Black Caucus to my knowledge," Ms. Edwards said.
At the same time, she challenged calls by Dr. Ben Carson, a neurosurgeon and columnist, for Americans to "tone down the rhetoric and recognize that we the people are not each other's enemies."
"But Dr. Carson, really to be clear, there are deep systemic problems that really impact African-Americans in the system that have to be addressed, and I think the president spoke to some of those. And so we can't ignore that," Ms. Edwards said.
President Obama compared himself in remarks Friday to the slain Florida teenager, saying "Trayvon Martin could've been me 35 years ago" and that the outcome of the case "might have been different" if the victim had been white.
The president earned praise from Trayvon's parents and many others, but black talk show host Tavis Smiley on Sunday dismissed Mr. Obama's remarks as "weak as pre-sweetened Kool-Aid."
"This is not Libya. This is America. On this issue, you cannot lead from behind. What's lacking in this moment is moral leadership," the PBS commentator said in an appearance on NBC's "Meet the Press."
The Justice Department is investigating the case for possible civil-rights violations. The department has come under criticism after documents released by Judicial Watch showed that the federal agency's Community Relations Service helped organize rallies against Mr. Zimmerman.
On CNN's "State of the Union," former House Speaker Newt Gingrich tangled with Rep. Bobby L. Rush, Illinois Democrat, after he said the Zimmerman trial reminded him of a lynch mob. Mr. Rush famously put on a hoodie last year on the House floor in support of Trayvon.
"You have a congressman who represents the most violent city in America, you have a congressman who represents the city in which 500 people were killed last year, 74 percent of them African-Americans," said Mr. Gingrich. "You have a congressman whose own district is bleeding who puts on a hoodie as a symbolic act, but he doesn't do anything about the gangs in his own district."
Mr. Rush countered that he has been "working relentlessly" on Chicago crime since he was elected and pointed out that the Congressional Black Caucus will be co-hosting a summit on urban violence Thursday and Friday at Chicago State University.
"I am astounded and ashamed by this violence, but this is also systemic of an overall problem," Mr. Rush said.
Dr. Carson said it was important to examine the laws, verdict and outcome of the case to "make sure that everything has been done correctly," but he discouraged civil rights leaders from adding fuel to a tense moment.
"We need to tone down this rhetoric," said Dr. Carson. "Those of us in leadership positions need to be looking for things that we can take out of this that can be helpful, not trying to inflame the situation."