WASHINGTON (AP) — Former Trump campaign chairman Paul Manafort shared polling data during the 2016 presidential campaign with a business associate accused of having ties to Russian intelligence, and prosecutors say he lied to them about it, according to a court filing Tuesday.

The allegation marks the first time prosecutors have accused Trump's chief campaign aide of sharing information related to the election with his Russian contacts. Although the filing does not say whether the polling information was public or what was done with it, it raises the possibility that Russia might have used ins...