President Barack Obama will hit Pennsylvania, Connecticut, Illinois and Ohio in a final election-weekend blitz, Democrats announced Friday morning. The president will help incumbent Democrats in top Senate and gubernatorial races before heading back to Washington, D.C., to wait for election returns Nov. 1 and on Election Day.

On Oct. 30 — as Jon Stewart and Stephen Colbert hold rallies on the National Mall — Obama will stump for Democrats in Philadelphia, Bridgeport, Conn., and Chicago. On Oct. 31, Obama and Vice President Joseph Biden will hold a rally in Cleveland.

The idea is to help fire up the Democratic base in hopes of high turnout and also to shore up support in key battleground states that will make the difference in 2012 during Obama’s re-election campaign.

Obama was most recently in Seattle campaigning for Sen. Patty Murray (D). He’ll stump Friday in Nevada for Senate Majority Leader Harry Reid (D) and in Los Angeles for Sen. Barbara Boxer (D) this weekend.

First lady Michelle Obama will hold rallies in Philadelphia and Las Vegas on Nov. 1.

The president is an absentee voter in Illinois. Aides said he voted for the Democratic ticket.

On Nov. 5, Obama heads to India, Indonesia, South Korea and Japan for a multi-day trip.

President Bill Clinton this weekend will be helping Tarryl Clark (D) in Minnesota’s 6th district as she runs an uphill race against the left’s favorite target, Rep. Michele Bachmann (R).