Beto O'Rourke will make his first trip to Iowa this weekend, further fueling speculation the former congressman will soon enter the 2020 presidential race.

According to an announcement video posted to Twitter, O'Rourke will join volunteers on behalf of Iowa Democrat Eric Giddens, who is running in a special election for a state senate seat against Republican Walt Rogers.

"Supporting him for state Senate is the way that we get Iowa — and by extension, this country — back on the right rack," he says in the tweet. "(University of Northern Iowa), we're counting on you, and we're looking forward to seeing you soon. Adios."

Numerous 2020 contenders have joined the effort to help Giddens, including Massachusetts Sen. Elizabeth Warren and Montana Gov. Steve Bullock. Sens. Amy Klobuchar of Minnesota and Cory Booker of New Jersey also are planning to campaign with him this weekend.

According to media reports, former Iowa Democratic Party executive director Norm Sterzenbach is among those O'Rourke has brought on to begin building out his Iowa team.

Sterzenbach did not return requests for comment from the Des Moines Register.

However, Iowa Democratic Party Chairman Troy Price confirmed that Sterzenbach ended his contract as an advisor to the state party effective March 8 so that he could go work for a campaign.

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Sterzenbach had been helping the party determine a new set of rules and procedures to make them more transparent and accessible, including establishing a new virtual caucus process. Price said Sterzenbach has signed a nondisclosure agreement regarding his work for the state party.

"As far as I know, there is no overlap between his work with us and another campaign," Price said.

Sterzenbach is known for his deep understanding of the Iowa caucuses and the strategy behind them. He’s now a principal at the public affairs firm GPS Impact, which has become a force in digital and targeted media for campaigns across the country.

► More:Norm Sterzenbach: A key player in the 2020 Iowa caucus

O'Rourke, a Texas Democrat who was narrowly defeated by Sen. Ted Cruz in the 2018 midterms, has not officially announced his presidential candidacy, despite national buzz following his senate race.

Coming off the midterms, Jeremy Dumkrieger, chairman of the Woodbury County Democrats, said many many viewed O'Rourke as a "young rock star." In a December Des Moines Register/CNN/Mediacom Iowa Poll, 11 percent of likely Democratic caucusgoers said he was their first choice for president — putting him behind only former Vice President Joe Biden and Vermont Sen. Bernie Sanders.

But he has yet to make an appearance in the state, and a more recent Iowa Poll conducted in March found his support slipping by about half, to 5 percent.