Updated

Officials in Gettysburg, Pa., are hoping to borrow one of the nation's most historic documents — an original copy of Lincoln's Gettysburg Address.

The foundation that runs Gettysburg National Military Park's museum and visitor center wants to put the document on public display as part of its celebration of the 150th anniversary in November of Lincoln's famed speech. It's asking to borrow a copy held by the Library of Congress.

Pennsylvania Sen. Robert Casey wrote to the library Tuesday expressing his support of the plan.

But Gettysburg might have to look elsewhere. The Library of Congress does not lend its two copies of the speech because of their fragility and priceless nature.

Other copies are held by the White House, Cornell University in New York and Lincoln's presidential library.