Obama plans campaign events in four critical battleground states

President Obama plans a series of fall rallies in key states for Democrats in advance of November's midterm elections.

The president has scheduled at least four stops: Wisconsin, Pennsylvania, Ohio, and Nevada. All are home to House and Senate races that could determine control of those chambers, in addition to gubernatorial contests.

The events, orchestrated under the banner of "Moving America Forward," are billed as an effort by Obama to "rally the troops and talk to Americans about what’s at stake in the outcome of the midterm elections."

Obama has stepped up his campaign efforts this week, the traditional launching point of the campaign season. He donated $4 million to the party's campaign committees from his own campaign account Thursday, a day after rallying his base with a populist speech on the economy.

Polls suggest trouble for Democrats this fall, as the GOP threatens to win back the House and possibly the Senate. Rep. Chris Van Hollen (D-Md.), the chairman of the Democratic Congressional Campaign Committee (DCCC), has suggested the president would need to be "turbocharged" this fall if he wants Democrats to stave off major losses.

The fall tour begins with an organizing rally Sept. 28 in Milwaukee that will focus on young voters, whom Democrats need to turn out this fall.

That event will be followed up with a rally on Oct. 10 in Philadelphia, and a tele-town hall on Oct. 12, during which Obama will encourage supporters to commit to vote on Election Day.

Obama plans two other "major organizing rally" events Oct. 17 in Ohio, and Oct. 22 in Las Vegas, Nev.

The rallies, according to the Democratic National Committee (DNC), will be bolstered by other coordinated events headlined by Vice President Joe Biden and DNC Chairman Tim Kaine.

Updated 3:36 p.m.