Congressional Democrats intend to introduce a number of bills between now and Election Day that have little or no chance of passing.  They have announced that they will use Congress to showcase the kinds of legislation they intend to pass in 2009 if Sen. Barack Obama (D-IL) sits in the White House.  According to an Associated Press report:

Labor and trade bills, viable or not, are favorite vehicles for Democrats to energize their base of union workers. Democrats in both chambers are introducing bills that would basically bring the nation’s free-trade agreements to a halt, a move pushed by labor unions. McCain backs free trade.

Other tough votes loom for McCain, such as on legislation that would extend unemployment benefits, make it easier for workers to sue for wage discrimination, and ban workplace discrimination against gays, lesbians and bisexuals.

The last two bills mentioned above are the "Lilly Ledbetter Fair Pay Act" (H.R. 2381), and the Employment Non-Discrimination Act (ENDA) of 2007 (H.R. 3685) -- both of which passed the House late last year, and were subsequently filibustered in the Senate.  More information about each is available under the Workplace Horizons  Pay Discrimination and Sexual Orientation Discrimination tags.