Appointed Sen. Michael Bennet (D-Colo.), now facing both a tough primary challenge and a high profile GOP opponent, is touting the endorsement of President Obama in an e-mail fundraising appeal.

Here's Obama's endorsement:

"Throughout his career, Michael Bennet has brought businesses back from the brink, helped bring Denver from deficits into balance and improved the Denver public school system by ending five years of budget cuts to close the achievement gap. Families in Colorado and across America need him in the United States Senate to help us revitalize our economy, improve our public schools, and pass health insurance reform - and I am proud to count him as my ally in those efforts. Michael has had my full support from day one and I look forward to working with him in the Senate for years to come."

The e-mail from Bennet's campaign manager says Bennet is "determined to continue working with the President to bring the change our country needs." It urges recipients to donate $5 or more to his campaign.

Most importantly, we need your help in building this campaign and growing a strong grassroots network of support. More than anyone, President Obama knows that it's the support of people like you that makes the difference.

Please forward this email to 5 people and ask them to learn more about Michael Bennet -- about fighting for health care reform and supporting a public option; about being a leader in Washington on improving our education system; and about making the tough decisions to get our economy moving again.