New York City could host a national convention again but it will not be held in Manhattan. If Mayor Bill de Blasio has his way, it will be held in his home borough of Brooklyn.

In an open letter address to Rep. Debbie Wasserman-Schultz (D-Fl.), chairwoman of the Democratic National Committee, Mayor de Blasio nominated Brooklyn as the location for the upcoming Democratic National Convention, according to Reuters. The letter was made public on Friday and it offered Brooklyn's new Barclays Center as the perfect spot for the event.

Although the convention will not take place until the summer of 2016, the bids for the convention have already been sent in since the due date was this Friday, said Lily Adams, a spokeswoman for the Democratic National Committee. However, de Blasio's proposal may also be an appeal for the more liberal wing of the party.

As Reuters posits, Hillary Clinton is the preferred candidate for the campaign, despite not formally announcing a run. Yet, many on the more liberal side do not see Clinton as a good candidate. With de Blasio, a more staunchly liberal politician, and Brooklyn, a very liberal borough, behind the convention, it could add more legitimacy for that side of the party if Clinton does end up running.

According to Politico, de Blasio touted New York City's safety in the letter as well as its vitality.

"The progressive spirit of New York City has never been stronger or more vibrant than it is today," the mayor said in a statement. "We believe that this spirit can energize and captivate both the Democratic Party and the nation."

New York has hosted multiple DNCs and one Republican convention but all were held in Madison Square Garden. In recent years, the Democratic Party decided to have the conventions on swing states but a return to New York could be a symbolic endorsement of the more liberal side of the party.

The Democratic National Committee extended the invitation to 15 cities, including New York. The other cities are Atlanta, Chicago, Cleveland, Columbus, Detroit, Indianapolis, Las Vegas, Miami, Nashville, Orlando, Philadelphia, Phoenix, Pittsburgh and Salt Lake City.

De Blasio's bid has received the support of Se. Chuck Schumer (D-N.Y.) and New York's Democratic Governor Andrew Cuomo.