Scott Horsley

Treasury Secretary Timothy Geithner says it's up to congressional Republicans to take the next step in budget talks to avoid the pending automatic spending cuts and tax increases at the end of the year.

Appearing on the Sunday talk shows, Geithner said there's "no path to an agreement" until Republicans are willing to accept higher tax rates on the rich.

President Obama is hoping the same campaign tools that helped him win re-election will also deliver a policy win in the fight over federal taxes.

The president wants Congress to extend Bush-era tax cuts for most Americans, while allowing taxes to go up for the wealthiest 2 percent. His aides are using email, social media and beyond-the-Beltway campaign appearances in hopes of putting pressure on Republican lawmakers.

President Obama holds a Labor Day campaign rally in Toledo, Ohio, on Monday, and then flies to Louisiana to inspect the damage from Hurricane Isaac. The Toledo rally is part of a long weekend of campaigning, leading up to the Democratic National Convention, which starts Tuesday in Charlotte, N.C.

The president held a rally with thousands of students at the University of Colorado over the weekend. Just five days earlier, he'd been at Colorado State. Obama is hoping to harness the cross-state rivalry between the schools in the service of his re-election campaign.

When Texas Gov. Rick Perry was asked about Social Security during a campaign stop in Ottumwa, Iowa, last weekend, he didn't mince words. He suggested that younger workers who are required to pay into the retirement system are the victims of a government swindle.

"We need to have a conversation with America, just like we're having right here today, and admit that is a Ponzi scheme for these young people," Perry said. "The idea that they're working and paying into Social Security today, the current program, that it's going to be there for them, is a lie."