MADISON, Wis. (AP) -- The chairman of the Wisconsin Democratic Party says efforts to recall Republican Gov. Scott Walker and Lt. Gov. Rebecca Kleefisch remain on track, but he refuses to update how many signatures have been collected.

Democratic Party Chairman Mike Tate said during a Tuesday conference call that the petitions will be turned in to state election officials on Jan. 17. They need 540,208 for both Walker and Kleefisch to trigger recall elections.

Recall organizers said on Dec. 15 that they had 507,000 signatures for Walker but would not give a number for Kleefisch. Tate is still refusing to say how many signatures they have for her, but he says enough will be turned in to force a recall.

Tate says they are on track to get 720,000 signatures for Walker.