Metro

De Blasio to campaign for Ken Thompson in DA bid

Mayoral candidate Bill de Blasio will actively campaign to help elect fellow Democrat Ken Thompson as Brooklyn District Attorney to thwart a comeback bid by incumbent Charles (Joe) Hynes, The Post has learned.

Thompson defeated the 24-year  DA in last month’s Democratic primary.

The Post disclosed this week that Hynes has decided to keep running on the Republican and Conservative lines in the Nov. 5 general election.

De Blasio had also backed Thompson in the primary.