Sorting fact from fiction on social media. As Congress grills Mark Zuckerberg on the issue, New York lawmakers are doing what they can to make sure data and privacy are properly protected. Nick Reisman has the story.

ALBANY, N.Y. -- With social media's influence on the 2016 presidential election still under review, a provision included in New York's state budget will require new disclosure for digital ads seen on sites like Facebook and Twitter.

“We know that there's no disclosure on social media and that's what these Russian influence peddling cases and these Russian campaign violation cases have shown. Why doesn't the country say you have to disclose the same way as you do on TV or in the newspaper?” said Cuomo.

The measure applies to digital advertising on social media sites for either a candidate or a political issue that seeks to influence voters. For lawmakers, this is something that needed to be done.

“I think it's just a matter of time. The 2016 elections kind of gave everyone a little bit of pause and concern and it was a matter of working through the process to find something that we think is appropriate,” said Assemblyman John McDonald, D-Cohoes.

Even before the 2016 election, incumbent state lawmakers have tangled with false or misleading claims made on social media by groups that commit to little or no disclosure. The ads can be potent, given that campaigns can target individual voters based on their friends or their likes online.

“What should cause everyone to be concerned is when outside interests who don't have the best interests of New Yorkers possibly are using this mechanism that right, wrong or indifferent a lot of people believe is real news,” McDonald said.

But questions remain over how the Board of Elections will enforce the new law.

“The public likes to have transparency, but to actually roll this out is going to be a very difficult process,” said Jennifer Wilson, with the League of Women Voters.

And what role social media sites will play in being policed on transparency.

“That's the other thing, too, is how are we going to force Facebook and Twitter to disclose this money. There are a lot of unanswered questions when it comes to this policy,” Wilson said.

Facebook this week announced plans to disclose who is paying for issue-based digital ads on its sites and Congress is weighing similar legislation.