Vice President Joe Biden will be in Iowa on Sunday, which will once again trigger speculation he may make a run for the White House in 2016.
Biden will headline the annual steak fry put on by longtime Democratic Sen. Tom Harkin.
The event, which dates nearly four decades, is one of the signature events for Iowa Democrats, drawing top politicians, and it has a rich history of attracting presidential hopefuls.
Biden has not said whether he'll make a third run for the Democratic presidential nomination. He launched unsuccessful bids in 1988 and 2008.
"I can die a happy man never having been president of the United States of America. But it doesn't mean I won't run," Biden said in a July interview with GQ magazine.
As for his timetable, he told CNN Chief Political Analyst Gloria Borger earlier this year that "I haven't made that decision. And I don't have to make that decision for a while."
But a trip to one of the crucial early voting states like Iowa, which kicks off the presidential caucus and primary calendar, sets off alarm bells among political watchers.
There were a number of stories last month when Biden teamed with President Barack Obama at a campaign style event on education in Scranton, Pennsylvania, where Biden was born.
The event didn't go unnoticed by the Republican National Committee, which posted a web video in advance that characterized the rally as the first step in the "Biden 2016 kickoff tour."
At the event Obama praised Biden, noting it was the fifth anniversary of joining the Democratic ticket.
Obama said it was "the best decision I ever made politically."
Until last month, the RNC and pro-Republican groups had been concentrating firepower mostly on former Secretary of State Hillary Clinton.
If she decides to run for the White House again, Clinton would be considered the Democratic frontrunner.
Biden last appeared at the steak fry in Indianola in 2007.
Then a senator from Delaware, Biden shared the stage with Obama, Clinton, Chris Dodd, John Edwards and Bill Richardson.
Biden was supposed to headline last year's fry, but couldn't make it.
Maryland Gov. Martin O'Malley, who's also considered a possible 2016 contender, was the keynote speaker.
Biden aides say he is showing up this year to honor a commitment he made to Harkin, a five-term senator who's retiring after next year.
Speaking with Iowa reporters on Thursday, Harkin said its way "too early to speculate" about Biden's prospects, but he added "Joe Biden's always had good support among Iowa Democrats. He's very popular in a number of areas around the state."
According to local reports, Harkin also said Biden "has a long history of working with Iowa Democrats, so I think that he would find - how should I phrase it? - fertile ground in Iowa if he should choose to run."
Biden finished a distant fifth in the 2008 Iowa caucuses.
The 2014 race to succeed Harkin will be competitive, and a couple of congressional contests in the Hawkeye state will also attract national attention.
"This trip is really about the 2014 election rather than about 2016," Larry Rasky, a longtime senior political adviser to Biden, told CNN.
He pointed to a fundraiser later this month in the nation's capital that Biden is headlining for Jim Mowrer, who's challenging conservative Iowa Republican Rep. Steve King next year, to highlight the vice president's efforts to help elect fellow Democrats in the midterms.
While touting those efforts, Rasky also conceded that "you can stop people from speculating. The vice president obviously hasn't taken 2016 off the table and Iowa's more than a little important."