MADISON, Wis. -

Republican Sen. Ron Johnson's latest campaign ad focuses on his faith-based initiative to help people find jobs in inner-city Milwaukee.

The ad released Wednesday comes the same day as a new Marquette University Law School poll showing Johnson trailing Democrat Russ Feingold by 6 points.

Among registered voters, Feingold had 46 percent support compared with 40 percent for Johnson. Among likely voters, Feingold had 47 percent compared with 41 percent for Johnson.

The poll was conducted Sept. 15 through Sunday, sampling 802 registered Wisconsin voters. It has a margin of error of 4.4 points among registered voters and 4.8 points among likely voters.

Johnson's ad features Johnson, participants in the Joseph Project and Pastor Jerome Smith of the Greater Praise Church of God in Christ in Milwaukee.