WASHINGTON (AP) — The mayor of Wilmington, Delaware, denied on Tuesday that he's endorsing Hillary Rodham Clinton for president, as her campaign has claimed.

"Incorrect info about an endorsement," Mayor Dennis Williams tweeted Tuesday night. "I've known @VP Biden since I was 12 yrs old, if he chooses to run, he will receive my support!"

Williams has not endorsed anyone in the 2016 presidential race, spokeswoman Alexandra Coppadge told the Associated Press.

Clinton's campaign on Tuesday released a list of current and former African-American mayors it said were endorsing her. Williams name was on the list. Coppadge said Williams has no recollection of being asked for support from the Clinton campaign. The mayor's office is reaching out to the Clinton campaign for a correction, she said.

On Tuesday Clinton's campaign also released a list of 90 Texas Democrats who had endorsed the former secretary of state. San Antonio Mayor Ivy Taylor's name was among them, but a spokeswoman for Taylor said the mayor has no intention of endorsing or supporting any presidential candidates.

Leslie Garza said the San Antonio mayor "is a non-partisan elected office and Mayor Taylor is committed to remaining nonpartisan in the upcoming presidential election."

A spokeswoman for Clinton did not immediately respond to a request for comment.

Biden is considering a presidential campaign but has not announced his plans. He was born in Scranton, Pennsylvania, but has lived in Delaware most of his life.