In the city where the Democratic candidate for president in 2016 will be announced, supporters of one candidate will march to try and get others on board with their campaign.

According to the campaign website for Bernie Sanders, a march will be held on Jan. 23 at noon at Philadelphia City Hall to "inform eligible voters of the upcoming Primary election and remind them to vote for Bernie."

The event page chides the media for not covering Sanders enough, a claim that the Vermont senator has made himself.

Organizers are encouraging those who show up to bring signs, posters and shirts that show support for Sanders. As of Saturday, the Facebook event for the march had more than 500 people attending and more than 1,700 others interested in going.

Sanders, who has remained an independent throughout his political career but is seeking the Democratic nomination for president, is the main challenger for frontrunner Hillary Clinton. According to the latest RealClearPolitics poll average, Sanders trails Clinton nationally, 53.8 to 31.2 percentage points.

Lagging behind both is former Maryland Govenor and Baltimore Mayor Martin O'Malley with 4.6 percent.

The Democratic National Convention is being held in Philadelphia from July 25 to 28. During the convetion, the party will formally choose their nominees for president and vice president.

Pennsylvania's Democratic primary will be held on April 26.

Clinton is widely seen as the favorite not only nationally but in the Keystone State. Many prominenet Pennsylvania Democrats, including outgoing Philadelphia Mayor Michael Nutter and former Governor Ed Rendell have supported her in the past.

Both endorsed Clinton and campaigned for her in the state in 2008 when she lost to the eventual winner, President Barack Obama.