DES MOINES, Iowa (AP) — Minnesota Sen. Amy Klobuchar will give the keynote address at the Iowa Democratic Party’s annual Jefferson Jackson Dinner, the state party organization announced Tuesday.

The two-term senator will speak at the dinner on Oct. 25 at Hy Vee Hall in Des Moines. Klobuchar has made several visits to Iowa since 2012, sparking speculation about her 2016 presidential ambitions. She has said she would support former Secretary of State Hillary Rodham Clinton, if Clinton chooses to run.

Clinton has not announced any plans, but she appeared Sunday at Iowa Sen. Tom Harkin’s annual Steak Fry Fundraiser and made clear she was considering a bid. Other Democrats testing the waters in Iowa include Vice President Joe Biden and Maryland Gov. Martin O’Malley.

Iowa Democratic Party Chairman Scott Brennan said in a statement that the party invited Klobuchar to the fundraiser “because she’s a great speaker and a strong advocate for our candidates.”

Sen. Charles Schumer appeared at the dinner last year. It is considered a major event on the Iowa Democratic calendar.

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