Updated at 2:20 p.m. ET
The Supreme Court appeared willing Tuesday to say that the Constitution's right to possess guns limits state and local regulation of firearms. But the justices also suggested that some gun control measures might not be affected.
The court heard arguments in a case that challenges handgun bans in the Chicago area by asking the high court to extend to state and local jurisdictions the sweep of its 2008 decision striking down a gun ban in the federal enclave of Washington, D.C.
The biggest questions before the court seemed to be how, rather than whether, to issue such a ruling and whether some regulation of firearms could survive. On the latter point, Justice Antonin Scalia said the majority opinion he wrote in the 2008 case "said as much."
The extent of gun rights are "still going to be subject to the political process," said Chief Justice John Roberts, who was in the majority in 2008.
At the very least, Tuesday's argument suggested that courts could be very busy in the years ahead determining precisely which gun laws are allowed under the Second Amendment's "right to keep and bear arms," and which must be stricken.
James Feldman, a Washington-based lawyer representing Chicago, urged the court to reject the challenges to the gun laws in Chicago and its suburb of Oak Park, Ill. Handguns have been banned in those two places for nearly 30 years.
The court has held that most of the rest of the Bill of Rights applies to state and local laws. But Feldman said the Second Amendment should be treated differently because guns are different. "Firearms are designed to injure and kill," he said.
But Feldman ran into difficulty with some of the five justices who formed the majority in 2008. Justice Anthony Kennedy, who joined Scalia's opinion two years ago, said it seemed to him that Feldman was arguing that the court got it wrong two years ago.
Of the other two justices in the majority then, Justice Samuel Alito also appeared to agree that the Second Amendment should be extended to state and local laws and Justice Clarence Thomas said nothing, as is his custom during argument.
Outside of Tuesday's oral argument, supporters and opponents of gun control laws stood firm on how they wanted the court to act.
Paul Helmke, president of the Brady Center to Prevent Gun Violence, said the Supreme Court must decide that the Constitutional right to possess guns does not mean state and local governments have no controls over them, reports CBS Radio News.
"Reasonable restrictions to protect the people in their cities, something that elected officials have had a responsibility for in this country for over 220 years is something that hopefully the Supreme Court will uphold," Helmke said.
Wayne LaPierre, vice president of the National Rifle Association, said he thinks the Supreme Court will extend gun ownership rights to all jurisdictions, not just federal ones, CBS Radio News reports.
"I have every confidence that the Supreme Court is going to rule that this is a freedom for all the American people, not just those living in federal enclaves," LaPierre said.
Tuesday's statements from the court also left little doubt that it would not break new ground in how it might apply the Second Amendment to states and cities.
As in earlier cases applying parts of the Bill of Rights to the states, the justices suggested they use the due process clause of the 14th Amendment, passed in the wake of the Civil War, to ensure the rights of newly freed slaves.
The court has relied on that same clause - "no state shall deprive any person of life, liberty or property without due process of law" - in cases that established a woman's right to an abortion and knocked down state laws against interracial marriage and gay sex.
This is the approach the NRA favors.
"There's a relatively straightforward path for the court here," Paul Clement, an attorney for the NRA, told CBS Radio News. "It's in the due process clause, and the result would be to extend the Second Amendment across the country so it doesn't just protect people in the District (of Columbia) or in the national parks but protects everybody across the country."
For years, Scalia has complained about the use of the due process clause. But Tuesday he said, "As much as I think it's wrong, even I have acquiesced in it."
Alan Gura, the lawyer for the Chicago residents challenging the statute, urged the court to employ another part of the 14th amendment, forbidding a state to make or enforce any law "which shall abridge the privileges or immunities of citizens of the United States."
They argue this clause was intended as a broad guarantee of the civil rights of the former slaves, but that a Supreme Court decision in 1873 effectively blocked its use.
Breathing new life into the "privileges or immunities" clause might allow for new arguments to shore up other rights, including abortion and property rights, liberal and conservative legal scholars have said.
But why use that approach, calling for overturning 140 years of law, Scalia said, "unless you're bucking for a place on some law school faculty?"
Gura assured the court he is not in search of a job.
A decision is expected by the end of June.
The case is McDonald v. Chicago, 08-1521.