After winning the GOP Primary 60-40 percent, Sen. Kip Averitt (R-Waco) announced his resignation less than a week following the election.

"Your vote of confidence last Tuesday, election day, was most gratifying.  I am humbled by your support," Averitt said, in a press statement.  "Now, the time has come for me to step down."

Averitt indicated he would resign as of midday March 17, allowing Gov. Rick Perry to call a special election for May 8 to fill his seat.

"My immediate priority now is to see that the voters in central Texas get to pick their next senator," he wrote. "Serving you, our friends, and our neighbors has been my highest honor and greatest privilege. I thank you for your continued support of my decision to step away from public office after 17 years of service. I will now work on maintaining a healthy lifestyle and spending time with my children."

A remark from Lt. Gov. David Dewhurst followed not too long after Averitt's release.

"Senator Averitt has done an outstanding job representing his district with dedication and integrity, and has always put the best interests of Texas first," the Lieutenant Governor wrote. "I want to thank him for his leadership and, most importantly, his friendship, and I wish him all the very best in the future."

Averitt was opposed by Darren Yancey in the Republican primary. No Libertarian or Democratic candidate challenged the incumbent senator this year.

UPDATE (10 a.m. Tuesday): Former Sen. David Sibley (1991-2002) expressed interest in running for the seat Monday evening. Said Sibley, via a press release:

“Kip Averitt has been an outstanding State Senator and he remains a friend.  I understand his health concerns and support him in making the changes he needs over the coming months and years. Many in the District have asked about my interest in the position and I am honored they would consider me. In my discussions with supporters and Republican county chairs I have heard a lot about the need for conservative, effective, common-sense government and look forward to continuing these conversations in the coming days.”