He said he wanted to be sure "I tell everyone at the same time, adding that "I've got to be on the timeline that works for my family and for the country so that's the timeline we're on".
The moves suggest O'Rourke is ramping up for a presidential bid, including his first trip to Iowa as a candidate or prospective candidate.
In February, Giddens was selected by Black Hawk County Democrats to be their candidate for Iowa Senate District 30.
Beto O'Rourke and Oprah Winfrey talk during Oprah's SuperSoul Conversations at PlayStation Theater, Feb. 5, 2019 in New York City.
Former Texas congressman Beto O'Rourke is heading to the early presidential voting state of Iowa this weekend, fuelling speculation that the Democrat is poised to enter the White House race.
The video was produced with help from Norm Sterzenbach, a veteran Iowa Democratic operative who until recently was a contractor advising the state party on the caucuses.
Paul Ratje AFP Getty Images FILE
It continued: "And now I'm ready for us to bring our movement to the rest of the country". He did not respond to requests about whether O'Rourke was planning to run for president.
In a statement to CNN and other news outlets last month, O'Rourke said, "Amy and I have made a decision about how we can best serve our country. We are excited to share it with everyone soon".
O'Rourke is not the only 2020 contender slated to drum up enthusiasm for Giddens, who is running against former GOP state Rep. Walt Rogers.
O'Rourke has also been running ads on Facebook teasing an upcoming announcement, another sign that he is looking to engage the base of supporters he gained during his Senate bid.
O'Rourke's name was thrown in the ring as a potential 2020 Democratic presidential candidate after his closer-than-expected loss past year to U.S. Sen.
In an announcement posted on Twitter, Eric Giddens, an Iowa Democrat who is running in a special election for a state senate seat, said his campaign workers and O'Rourke will be urging students this Saturday at the University of Northern Iowa to vote in his election race.