Saving Commuters with . . . Social Media?

Two political figures are hoping to wield the power of The Share to save commuters Thursday.

City Council Speaker Corey Johnson will use Twitter and Facebook to pressure Mayor de Blasio to include Fair Fares in the budget — money that would subsidize MetroCards for low-income straphangers. The $212 million annual program would provide half-priced fares to more than 800,000 New Yorkers. Mayor Bill de Blasio has not said he's against the idea, but is resisting using city funds to pay for it. He has said he would prefer to fund Fair Fares with a millionaires tax, which would require approval from Albany.

Johnson is calling Thursday a "digital day of action" and is urging people to tweet using the tag: #FairFares.

"It's the first time that I know of the City Council has used this as a tool in our budget negotiating process and engaging the public," he told WNYC. "It's really a 21st century way to marshal support and to let New Yorkers have their voices be heard if they can't show up on the steps of City Hall with signs."

But #FairFares won't be the only transit-related hashtag filling up your social media feed Thursday. Gubernatorial candidate Cynthia Nixon, who has capitalized on the MTA's poor performance for her campaign, is planning to launch a "subway blitz" with various hashtags and images around the theme of fixing the subways.