(WHAS11) - Senator Barack Obama, who now has the support of Kentucky’s lieutenant governor Daniel Mongiardo, is headed back to the bluegrass.  He'll hold a rally in Louisville later tonight.

Supporters were making signs for tonight's rally at the Obama Louisville campaign office.  Congressman John Yarmuth showed up to help the supporters.  He is a superdelegate and Obama supporter.

Preps were also underway yesterday at the Kentucky International Convention center where tonight's rally will be held.

The rally is free and open to the public.  Doors open at five tonight, with the program beginning at seven.

Obama will also campaign in Lexington tomorrow.

Kentucky’s primary is set for next Tuesday.