State Rep. Aaron Peña, from Hidalgo County in South Texas, after serving five terms in the Texas House, announced last last week that he's not seeking re-election to a sixth term.
Peña, who had been a long time conservative Democrat, switched to the Republican party last November, just weeks after being re-elected to office as a Democrat. Peña's switch gave the GOP a super majority of 101 members in the 150-member House for the 2011 legislative session. As a thank you from the Republican controlled legislature, Peña's district was gerrymandered redistricted to include a majority of Republican-friendly voters.
But after the panel of three federal judges in San Antonio on Wednesday ordered un-gerrymandered election maps for the 2012 election, Pena said he just couldn't win in his district running as a Republican. Peña is the 23rd incumbent in the House to decide not to seek another term of office. (Mean Rachel has an interesting blog post on Peña's withdrawal)
Peña is not first and probably not the last in a long line of erstwhile conservative Democrats to abandon the Democratic Party for the Republican Party. Rick Perry switched affiliation from the Democratic Party to the Republican Party more than 20 years ago. Millions of erstwhile conservative Democrats - politicos and voters alike - have switched party allegiance to become Republicans over the past 20 years.
Today, the Texas Democratic Party finds itself in a state of near disarray - deserted by erstwhile conservative Democrats, unable to field new candidates who can win elections, and unable to attract donations to fund party operations. Both houses of the state legislature have large majorities of Republican, and there hasn't been a Democrat elected to a statewide office for the last 18 years. It's not because members of the Republican Party of Texas vastly outnumber members of the Texas Democratic Party (TDP) in the state -- they don't. The parties have roughly equal membership.