Oprah Winfrey proved Wednesday that her star power has not faded. Two hours after Stacey Abrams' campaign announced that Winfrey will campaign on her behalf Thursday at two separate events, tickets are no longer available.

Many supporters who responded quickly said they were able to register online and score tickets. But others reported on Twitter that their hopes to see Winfrey and Abrams share the stage were unsuccessful.

Visitors who click the registration link now find this message: “We’re sorry, but this event has reached maximum capacity.”

Those who were able to score tickets either will attend Thursday morning's rally in Marietta or one that afternoon in Decatur. There are also rumors that Winfrey will join Abrams in a neighborhood canvas on Thursday morning.

Meanwhile, there is a different procedure in place for those seeking tickets for Abrams' event on Friday with former President Barack Obama. Tickets can only be obtained in person today between 2 and 5 p.m. at designated sites.

Obama will be rallying with Abrams and other Democrats at Forbes Arena on the campus of Morehouse College. For more information about tickets for the Obama event, visit the Georgia Democratic Party's website.