School Closing: The Green Aspiration Academy

Tim Kaine campaigns at Lorain High School

LORAIN -- Al Franken is bringing some humor to the trail while he campaigns in  Ohio  alongside Democratic vice presidential nominee Tim Kaine.

The Minnesota senator and former comedian is encouraging about 100 union workers to knock on as many doors as possible until Election Day. He jokes: "Many of you have jobs, many of you have families — ignore them."

Franken then took a more serious note, noting he won his 2008 Senate race by just about 300 votes. He said that's proof that every door knock and vote matters.

Franken and Kaine  are trying to energize voters near Cleveland. Kaine will campaign later Thursday near Columbus. Ohio is an important toss-up state in the Nov. 8 election.

**More on the  Race for the White House here**