In an email to supporters today, Obama Campaign Manager Jim Messina says “we won’t be able to control whether Congressman Ryan tells the truth” in tonight’s debate.

“For his whole career, Paul Ryan has made an art of obscuring the facts,” the email says. “He’s done it on big things — like the fact that the Ryan budget that he championed in Congress, later adopted by the Romney-Ryan campaign, would actually end Medicare as we know it for our seniors and turn it into a voucher program.”

The email also contains a throwback to early September when Ryan claimed he ran a marathon in less time that what was actually true. “He’s misrepresented even the smallest things, too,” the email says.

Read the full email after the jump.

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Whatever happens at the vice presidential debate tonight, we need to respond quickly and forcefully.

With 26 days to go, we can’t just sit and wait for someone else to set the record straight. That’s how elections are lost.

We won last time because people like you stepped up and chipped in what they could to move the country forward. The stakes are even higher this time, so what are you waiting for?

Please make a donation of $5 or more right now to see this campaign through the finish line.

The number one thing we won’t be able to control in tonight’s debate is whether Congressman Ryan tells the truth — about himself, his record, or his and Mitt Romney’s actual plans for where they’d take our country.

If the past is any indicator, he won’t.

For his whole career, Paul Ryan has made an art of obscuring the facts. He’s done it on big things — like the fact that the Ryan budget that he championed in Congress, later adopted by the Romney-Ryan campaign, would actually end Medicare as we know it for our seniors and turn it into a voucher program.

He’s misrepresented even the smallest things, too — like his own personal marathon time.

If he’s not going to be bound by the facts tonight, it’s something that every voter needs to know.

One big thing our side can control in this debate is how strongly we respond.

As soon as Vice President Biden walks off that stage, we need to be ready to fire all cylinders to make sure our message — and the truth about the choice in this election — gets out there.

There are only 26 days left. Don’t sit this election out. Before the Vice President gets up on that stage to fight for us tonight, please make a donation, no matter how large or small:

[LINK]

Thank you for everything.

Messina

Jim Messina
Campaign Manager
Obama for America