Tea Party groups in California have vowed to "actively oppose" former Rep. Doug Ose, R-Calif., if he decides to run for Congress in 2014. In a July 8, 2013, letter to Ose, a coalition that included the Sacramento Republican Assembly, Elk Grove Tea Party and the California state director of FairTax urged the former congressman not to run, citing several votes from his previous terms in Congress with which they disagreed.

"As you know, your record in Congress was not conservative," the groups wrote, citing Ose's votes supporting earmarks, reducing tax relief and giving Social Security benefits to illegal aliens.

"It's vitally important that [Rep.] Ami Bera [D-Calif.] is defeated next year. But it's even more important that the voters elect a congressman committed to protecting taxpayers and reducing the size and cost of the federal government. You are not that man," the letter said.

Ose served in Congress from 1999 to 2005 and left to honor his pledge to serve no more than three terms. He unsuccessfully sought to return in 2008, but was defeated in the GOP primary.

Now Ose is weighing a campaign against incumbent Rep. Ami Bera, D-Calif., who is listed as vulnerable by the Democratic Congressional Campaign Committee.

Ose is not alone in seeking the Republican nomination for Congress. In June, former U.S. Senate candidate Elizabeth Emken announced she would run in the Republican primary for the seat. California state Sen. Ted Gaines is also mulling a run.

h/t @jaseliberty