Updated

Two-term Sen. Jim Bunning announced Monday that he won't seek re-election in 2010.

Bunning had been facing an uphill battle, falling behind in fundraising against his main potential primary challenger, Kentucky Secretary of State Trey Grayson, and having lost support from fellow Kentucky Republican and Senate Minority Leader Mitch McConnell.

"Over the past year, some of the leaders of the Republican Party in the Senate have done everything in their power to dry up my fundraising. The simple fact is that I have not raised the funds necessary to run an effective campaign for the U.S. Senate. For this reason, I will not be a candidate for re-election in 2010," he said in a statement.

In his last financial disclosure statement issued with the FEC, Bunning, 77, had earned $567,000 in the second quarter of this year compared to $602,000 for Grayson. Bunning had earned $6.5 million for his 2004 election.

Bunning, a baseball Hall of Famer, was considered the GOP's most vulnerable senator in next year's election. Much of that perception came from discouragement by his own party members.

On announcement of Bunning's departure, however, McConnell expressed his appreciation for his junior senator.

"Jim has enjoyed two Hall of Fame worthy careers, and I am honored to have worked by his side in the Senate for the past several years. His steadfast focus on serving the people of the Commonwealth has been as unwavering as his conservative ideals. Kentucky is a far better place because of his service. While he may have decided not to run for reelection, I am confident that he will continue to be a valued member of our conference and contribute in meaningful ways for years to come," McConnell said.

BUNNING'S STATEMENT:

I have the same conservative principles in 2009 as I had when I was first elected to Congress in 1986. Over the past twenty-two years I have always done what I thought was right for Kentucky even if that meant taking positions that were not popular with the media or even leaders of my own party.

Speaking out against bailouts and wasteful spending supported by the Republican leadership in the Senate and a Republican President last year angered many of my colleagues in my own party, but I didn't run for public office for fame or public acclaim. When I cast a vote I think about how it will affect my grandchildren and the next generation of Kentuckians, not my next election or invitation to a D.C. cocktail party. The people of Kentucky know where I stand and I am honored that they have continued to send me back to Congress to represent them each time I have run for the House and Senate.

Unfortunately, running for office is not just about the issues. To win a general election, a candidate has to be able to raise millions of dollars to get the message out to voters. Over the past year, some of the leaders of the Republican Party in the Senate have done everything in their power to dry up my fundraising. The simple fact is that I have not raised the funds necessary to run an effective campaign for the U.S. Senate. For this reason, I will not be a candidate for re-election in 2010.

This was a difficult decision because I feel like my work in the Senate is more important now than ever. As I finish out my term, Kentuckians should know that I will continue to be a strong voice against the domestic policies pushed by the White House and Congress that -- if enacted -- will put this country on the path to socialism.

I will continue to do everything in my power to ensure that the United States remains true to the principles that have made this country a beacon of freedom and economic opportunity for so many. My hope has always been that my grandchildren and all Kentuckians have the same opportunities that I had growing up in Northern Kentucky many years ago. My fear is that the debt that this Congress and Administration is placing on future generations of Americans will lower the standard of living for all Kentuckians in the future if they are not stopped.

While I am confident that this seat in the U.S. Senate will stay in Republican hands, I have no plans to endorse a candidate in the Republican primary. Like many others in Kentucky, I look forward to seeing where each of the candidates stands on the important issues and I hope a strong conservative wins the primary. The Republican Party needs more people with strong principles and convictions that can stand up to the temptations of political power that have engulfed so many of our leaders after they arrive inside the beltway.

Finally, I would like to thank the many friends and supporters that have encouraged me to seek a third term in the Senate. Without the friendship, guidance, and support of so many over the years I never would have had the privilege to represent Kentucky in the House and Senate. Mary and I feel so blessed to have so many good friends and such a strong family. We have spent many years in the public eye and we look forward to spending more time with our children and grandchildren. Thank you and God bless.